Best Bluetooth Microphone And Speaker

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Have you been pondering what is the best bluetooth microphone and speaker to meet your requirements? You dont have to worry anymore as the solution is at your fingertip. Read through and select from best bluetooth microphone and speaker reviews that abound on the website.

Before recommending any product we buy it test it and then ask our team of expert to document their findings on every product. This costs us thousands dollars each month. We do this to ensure we dont let you make the mistake of purchasing the wrong product.

Table of Contents

Best Bluetooth Microphone And Speaker – Comparison Table

Best Bluetooth Microphone And Speaker – 2022 Review | Which Is The Best

. JYX Karaoke Machine with Two Wireless Microphones, Portable Bluetooth Speaker with...

What We Like About This Product

  • Karaoke machine: Include two wireless microphones for your home karaoke.The speaker and the mic will connect automatically when they turned on.Independent treble/bass/echo control, create an great karaoke effect.Two extra microphone jacks allow you to connect more microphones and karaoke with your family and friends.
  • Bluetooth 5.0 DSP Chip: Adopt the latest Bluetooth 5.0 chip for wireless streaming, provide the more stable transmission and longer distance,ensure the uninterrupted party. Compatible with android mobile phone, TV, iPad, tablet, PC. Ideal choose for personal party,school,class room,gym.
  • Powerful on-the-go Speaker: 15W output power with 6.5 inch woofer and 2 inch tweeter bring amazing music and awesome vibe to your party.Independent Treble/Bass adjustment makes music loud,clear and strong,amplifier your voice without distorting the audio, even at higher volumes.5200mAh high capacity lithium rechargeable battery guarantees your 8 hours uninterrupted party.
  • TWS Speaker: Two is better than one.Dual Wireless Stereo Pairing for Awesome Stereo. With a secondJYX-66BT wireless speaker you can pair 2 speakers to play together for a dual track stereo. Buy 2 JYX-66BT speakers to pair them up for booming stereo. Will be great loudspeakers for party.
  • Multifunctional Speaker: Built-in antenna for radio enthusiasts, make you stay tuned anywhere you go;AUX jack provide wide range of connectivity from phones,tables,laptop,ipad,etc.Support Microphone connection and music recording.Built-in micro-SD card slot gives you more playback options.

1. EARISE T26 Portable Bluetooth PA Speaker System with Wireless Microphone, 12W Karaoke...

What We Like About This Product

  • Compact and Portable: Carry your music with you anywhere you go - beach, gym, outdoor party, long drive, or your home garden. With a wireless microphone (NOT Included 2*AA Battery), T26 turns to a karaoke machine.
  • Multi-function PA System: T26 has a built-in Bluetooth 5.0 with a working range up to 33ft. Easy connection to Bluetooth, AUX, TF/USB input. It can record audio as streamed through the microphone with USB/TF card inserted. Besides, the T26 can be used as a power bank to recharge your smartphone/tablet via USB port.
  • HD Stereo Sound Quality: It's designed with multi-functions for full-range stereo sound reproduction. It makes the bass stronger and more balanced. The technology of separating high and low pitch can provide optimized sound, which is clear and sonorous.
  • Convenient Remote Control: Get rid of keeping near the speaker and getting back to adjust the music. The T26 is equipped with a remote control which includes all needed buttons for easier operation. (Note: The volume can't adjusted by the remote)
  • Long Lasting Battery: Built-in rechargeable 3.7V/3600mAh high-capacity Li-ion battery provides non-stop music up to 4.5 hours on maximum volume. Recharge for 6 hours with the included USB cable.

2. BONAOK Wireless Bluetooth Karaoke Microphone, 3-in-1 Portable Handheld Mic Speaker...

What We Like About This Product

  • 【PARTICULAR DESIGN】 - The excellent design of karaoke microphones is very suitable for your hand, which let you feel more comfortable. And the built-in high-quality Bluetooth module can be used as a wireless speaker, mp3 player, and recorder, compatible with various singing applications.
  • 【TWO WAYS CONNECTION】- Bluetooth Connection & Cable Connection. You just need to connect your phone with cable or Bluetooth, and then open the singing APP on your phone. The built-in clear audio and the vividly sound effect let you listen and sing anytime and anywhere.
  • 【HIGH COMPATIBILITY】- Supporting micro SD card max 32GB(NOT INCLUDED) and song switch. The Bluetooth has a great distance of connection(10m).
  • 【EASY TO USE】- Multi-function buttons, easy to switch to different modes, adjust microphone, echo, and music volume separately, enjoy singing along with the music. With echo mode, a karaoke mic can bring a surrounding immersion.
  • 【MICROPHONE FOR KIDS & ADULTS】-Come with 1* BONAOK microphone, 1* Portable Black Case, 1* Audio Cable, 1*Charge Cable, 1*User Manual, and 1*Colorful Box. Cute gifts idea for kids, teens and adults, friends and family, suitable for all kinds of holidays and festivals.

3. QFX PBX-800 TWS Bluetooth 8” Woofer 1” Tweeter Rechargeable Portable Speakers...

What We Like About This Product

  • Powerful Sound: Each speaker in this pair is equipped with an 8” woofer and a 1” tweeter to provide you with unmatched sound quality. The treble and bass booster will allow you to optimize your sound output, enhancing the sound experience for any type of event you are hosting.
  • TWS Bluetooth Connectivity: Stream music from any of your devices. Pairing the PBX-800 is simple and hassle-free. These wireless speakers are great for karaoke, stage performances, crowd control, or for any other event you may host.
  • Rechargeable: With the PBX-800 you’ll never have to worry about buying batteries again. Simply charge the PBX-800 by using the included power cable.
  • Convenient Operation and Portability: With a built-in carry handle the world is your venue! Whether you are setting up inside or outside, transporting the PBX-800 is a breeze. The wireless remote control gives you complete control of your music experience while the charging LED light indicator lets you know when to charge the speakers. A variety of inputs; microphone input, an auxiliary input, and SB/TF card inputs, make it easy to enjoy these wireless speakers in the comfort of your home, poolside, at the park, or wherever else you plan to jam out!
  • Get The Party Started: There is no need to buy extra accessories. Included with the two speakers are 2 AC adapters, 2 stands, 2 microphones, and 1 remote control. With this complete set you will be ready to jam out at your next event.

4. Anker PowerConf S3 Bluetooth Speakerphone with 6 Mics, Enhanced Voice Pickup, 24H...

What We Like About This Product

  • Smart Voice Enhancement: Real-time voice optimization and background noise reduction is conducted by the customized DSP algorithm to ensure you always sound crystal-clear to the other side.
  • 6 Microphone Array: Stand up, walk around, and be confident knowing that PowerConf S3 Bluetooth speakerphone has 360° voice pick up and covers your entire meeting space.
  • Optimized Clarity and Volume: Voice volume is automatically balanced to make up for differences in loudness and distance from PowerConf S3 Bluetooth speakerphone.
  • Double Talk: Hear every word of online meetings, with no words skipped even with simultaneous speakers.
  • Easy To Setup: PowerConf S3 Bluetooth speakerphone is compatible with all popular online conferencing platforms and can be connected to your phone via Bluetooth or computer with the USB-C cable.

5. JYX Karaoke Machine with Two Wireless Microphones, Portable Bluetooth Speaker with...

What We Like About This Product

  • Superb HD Stereo Sound Quality: The portable bluetooth speaker is equipped with a high-performance audio driver and an advanced digital signal processor, which make the sound clearer, the bass stronger, the volume more moderate, and eliminate all the noise.Built-in 5.25” subwoofer and 2” tweeter, which can amplify your voice, play the radio as well as stream songs and it does not distort the audio even at higher volumes. You can enjoy strong, loud, and transparent bass and treble.
  • Multi-function Karaoke Machine: Built-in the latest Bluetooth 5.0 chip for wireless streaming ensures instant pairing and provides a more stable transmission and longer distance. This big speaker also supports a Micro TF card, Flash USB, and AUX-in connectivity. Compatible with the android mobile phone, TV, iPad, tablet, PC. There is a 6.35 microphone input on the operation panel, which also works for guitars. The unique groove design on the karaoke machine allows you to place your phone.
  • Lightweight & Large Capacity Battery: JYX party speaker shell is made of exquisite and durable solid wood/leather. It weighs 2.96 KGS and is attached to a shoulder strap. Light, portable and compact. You can easily carry it to the beach, outdoor, etc. High-performance battery (built-in 3.7V/5200mAh rechargeable large-capacity lithium-ion battery), and low power consumption, guarantee 6 to 8 hours of continuous music playtime on a full charge. (standby for 72 hours, 10 hours for normal playtime)
  • Colorful Disco Lights: This PA system is equipped with colorful disco lights. Independent button to switch lights. The colorful LED lights create pleasant and romantic karaoke and party vibe for you. With this karaoke machine, you can enjoy a colorful and cheerful party.
  • TWS Mode: By connecting two same stereo systems, the powerful stereo sound will be synchronized and get you surrounded by 2 channels. You can enjoy music with the best sense of presence, power, and volume. (NOTE: If you are not satisfied with this speaker system or have any other questions, please feel free to contact us before returning. we promise to offer you satisfactory solutions.)

6. 8'' Portable Wireless Bluetooth Speaker System - Built-in Rechargeable Battery,...

What We Like About This Product

  • 350 WATTS POWER: For karaoke, the 350 watt 8-inch wireless speaker has a 4 Ohm impedance and delivers Full Range Stereo Sound Reproduction. A sound system with 8’’ full-range speakers, 4’’ mid-range speakers, and a 3’’ tweeter
  • EXCELLENT DESIGNATION: We created this speaker with a rugged and heavy-duty design yet with a convenient carry handle and rolling wheels adding a FM radio with digital LED display to make it look attractive
  • SPEAKER DIMENSION: This portable wireless bluetooth speaker has a dimension of 14.57’’ x 11.22’’ x 20.08’’ -inches with an approximate weight of 0 lbs. Works with all of your favorite devices such as smartphone and more
  • BATTERY QUALITIES: With a battery type of 12V/4.0AH Lead Acid Battery it allows you to use the speaker up to 3.5+ Hours. Built-in Rechargeable Battery by 12V/4.0AH and battery operated microphone that requires (2) x ‘AA’ batteries each
  • LISTENING TO MUSIC WIRELESSLY: This Bluetooth Wireless Portable PA Speaker System comes with a Bluetooth wireless audio streaming feature that makes it simple to connect and stream audio from other external devices

7. Pyle Wireless Portable PA System-400W Bluetooth Compatible Rechargeable Battery...

What We Like About This Product

  • 400 WATT POWER: This high powered PA amplifier speaker has an 8" woofer w/ maximum power output of 400-watt peak / 200 watts RMS so you can play your favorite tracks as loud as you want and with style. Perfect for DJ party/gatherings.Mounting Type:Floor Standing.Speakers maximum output power:120 watts
  • COMPATIBLE WITH BLUETOOTH: This PA loudspeaker is compatible with Bluetooth for wireless audio streaming and works with devices like iPhone, android mobile phone, iPad, tablet, PC. Ideal for personal indoor home and outdoor use
  • INSTANT KARAOKE FUN: This box type compact amplifier speaker has 2 1/4" microphone and 2 1/4"guitar/instruments input and you can connect up to 3 mics simultaneously for a karaoke party. Includes dynamic microphone, 1/4" - aux and RCA audio cable
  • FRONT CONTROL PANEL: This heavy duty amplifier speaker is also equipped w/ a front control panel for adjusting the bass, treble, and echo levels and mic, guitar, audio, and iPod/MP3 volume levels. Comes with a 35mm stand mount
  • RECHARGEABLE BATTERY: This high powered heavy-duty wireless PA system has a built-in Lead Acid, 12V 7Ah rechargeable battery w/ battery life of up to 10 hours and has a telescoping handle and caster wheels which makes it convenient and portable

8. JYX Karaoke Machine with 2 UHF Wireless Microphones, 5200mAh Portable Microphone...

What We Like About This Product

  • Multi-function Karaoke Machine : The product has a built in Bluetooth 5.0 provide the more stable transmission and longer distance, it also supports Micro TF card and Flash USB connectivity, Works with all of your favorite devices like iPhone, Android mobile phone, iPad, Tablet, PC, no cables needed , Great for churches, small parties, schools, class rooms, gyms, corporate meetings & presentaions
  • Great For Any Occasion And Location : Compact and lightweight to carry around for indoor and outdoor use Lightweight Weighs a merely 6.42 Pounds, Enjoy your favorite music, wherever you go - beach, gym, outdoor party or your home garden.
  • HD Stereo Sound Quality : Built-in stereo sound and bass speaker can provide high-performance optimized sound and full-range stereo sound reproduction.With 6.5'' woofer and 2'' tweeters, it can amplifier your voice, play the radio or stream songs and it does not distort the audio even at higher volumes. With a powerful stereo sound and a active subwoofer, it can amplifie higher as well as lower bass frequencies.
  • Rechargeable Battery : The powerful rechargeable battery could provide you a long non-stop music playing at its largest volume, Built-in 5200mAh High Efficiency Li-ion, which guarantees non-stop music playing up to 8 hours playtime on maximum volume. If it is charged all the time, it can be used all the time.
  • TWS Mode: When pairing two same models together, the powerful and stereo sound will be synchronized and surround you by 2 channels. With the loud and rich sound quality,you can wander in the world of music.(NOTE: If you are not satisfied with this speaker system or have any other questions, please feel free to contact us before return. we promises to offer you satisfactory solutions.)

9. ION Audio Block Rocker Plus - Portable Bluetooth Speaker 100W W/Battery, Karaoke...

What We Like About This Product

  • Dynamic, powerful sound 8 inch woofer and wide dispersion tweeter deliver clear, lifelike sound; A 100 watt peak power amplifier pumps up the volume and a Bass Boost button instantly cranks up the low end
  • Ultra-portable centerpiece for your gathering rugged plastic enclosure featuring a telescoping handle, wheels and two conveniently located carrying handles; Plus, a microphone is included for public speaking, karaoke and more
  • Long life battery 50 hour rechargeable battery for nonstop fun, plus a USB port is included for charging smartphones, tablets and more
  • Connectivity covered send your music to block rocker plus from any Bluetooth enabled device and control playback via dedicated Bluetooth track controls (play/pause, next, back).
  • No Bluetooth No problem A 1/8 inch (3.5 millimeter) aux input is also included for non Bluetooth devices as well as an on board AM/FM radio
  • Note: Kindly refer to the user manual provided as a PDF manual in the product description section
  • What’s in the box: Block Rocker Plus Bluetooth Speaker, Microphone with Cable, 1/8” (3.5 millimeter) stereo aux cable, power/charging cable, quickstart guide, safety & warranty manual

What We Think About The Best Bluetooth Microphone And Speaker

Types of Microphones

microphone

Impedance

An audio device’s output impedance is a measure of how much resistance it has to an electrical current. A microphone’s output impedance is typically lower than its input impedance. This means that the microphone must be connected to a preamp with a higher input impedance than its output impedance. This is known as impedance bridging and helps ensure proper voltage transfer. Generally a preamp with an input impedance of 2 KO to 10 KO is considered professional.

This article will describe how to calculate the sensitivity and Impedance of a microphone. The sensitivity of a microphone is measured in dBm. It is the ratio of the sensitivity of the input signal to that of the output signal. The higher the ratio the more sensitive the microphone is to the input signal.

Directionality

A microphone’s directionality is determined by the way it is aimed at sound. For vocals for example the microphone should be placed a suitable distance from the mouth ideally behind the windscreen. Similarly in a live PA environment a microphone placed against the teeth will not be effective at removing rumbles that are caused by vibration.

Microphones have two types of directional patterns: unidirectional and omnidirectional. The former picks up sound from all directions while the latter prefers sound from a single direction. In the case of the latter one must have some skill in order to use it properly. To learn how to use a directional microphone SYNCO offers tutorials.

Contact microphone

A contact microphone also known as a piezo microphone senses audio vibrations through contact with solid objects. It is almost completely insensitive to air vibrations and transduces only structure-borne sound. Its sensitivity and versatility make it an excellent choice for many applications. If you want to make high-quality recordings a contact microphone can help you get the job done.

Contact microphones are made from a thin piece of piezo electric ceramic material or a brass or alloy disc. These mics usually provide better sound quality because they are specifically designed for recording. They also usually come with preassembled cables that terminate in XLR or 1/4 connectors. These mics are also available in flexible versions made of a flexible PVDF fluoropolymer piezo film.

Electret microphones

Electret microphones are among the most popular types of microphones available today. They are inexpensive durable and produce high quality sound. They are widely used for live performances and recording sessions. These microphones are also commonly used in classrooms and karaoke bars. You can find these microphones in many different types of audio equipment including mobile phones and desktop computers.

A common characteristic of electret microphones is that they use an internally charged capsule. Some models feature additional circuitry between the input and output to improve signal processing. Some models also feature JFETs which can provide pseudo-amplification between the input and output.

Noise level

The noise level of a microphone is an important parameter when recording sounds. The SPL (sound pressure level) of a microphone is expressed as a number in decibels. This number is used as a reference to find the maximum noise level a microphone can generate at a given distance. A typical distance is one meter.

A microphone with a self-noise of 20 or more dB is considered high-noise. This noise is not very noticeable when recording but it is more difficult to mask in post-production. Typically microphones with a self-noise of 25dB or more should not be used.

Cost

The cost of a microphone can be based on many factors including the brand material used in construction and the quality of the workmanship. A microphone with many complicated features and high sensitivity will typically be more expensive than a cheaper one. Tube and condenser microphones are among the most expensive options.

The cost of a microphone will also depend on the quality of the microphone and the manufacturer’s reputation. A high-quality microphone will be more expensive than a low-end one but it will last longer than a cheap microphone.

Factors to Consider Before Buying a Microphone

Factors

Purchasing a microphone requires a certain amount of knowledge. There are three major factors to consider before you purchase a microphone. These factors will help you find the right microphone for your needs. The first is the type of microphone. There are condenser microphones and dynamic ones.

XLR connectivity vs USB connectivity

If you’re planning to make recordings on your computer you should know that you can choose a microphone with either XLR or USB connectivity. The two kinds of connectivity are different but both provide good audio quality. An XLR microphone requires an audio interface to connect to your computer while a USB mic simply plugs into your computer.

USB connections are more convenient for capturing audio but they’re not always as high quality as XLR microphones. USB microphones typically come with a preamp built in but they’re not as flexible as XLR microphones. And XLR microphones come with cables up to 20 meters allowing you to have more freedom in your studio.

One of the most significant advantages of XLR connections is that they allow for easy upgrades. It’s much more convenient to switch to a new mic if you want to change your equipment or upgrade your recording studio. In addition an XLR connection is more compatible with professional audio gear. USB microphones on the other hand are simply condenser or dynamic microphones with a built-in analog to digital converter. They are a good option if you plan on using your microphone primarily for video or audio recording.

Besides the difference in cable length the other main difference between USB and XLR connections is the way you connect your microphone to the computer. Using an XLR connection ensures that you have the proper level for recording video or podcast. You can also adjust the levels for each track with free software which will allow you to make your recordings sound perfect.

Dynamic range of a condenser microphone

A condenser microphone’s dynamic range relates to how much it can pick up sounds in a broad frequency range. It is generally more sensitive than other types of microphones and is used primarily for voice acoustic guitars and string instruments. The size of the microphone’s diaphragm can also influence how it responds to a given sound. For example a larger diaphragm produces a more even response while a smaller diaphragm is better for recording high frequencies.

In general condenser microphones exhibit reciprocal dynamic behavior. When an electrical signal is presented to the microphone it causes the diaphragm to vibrate. The diaphragm then generates an electrical signal with a similar waveform. This reciprocal behavior can help determine how the resulting sound should be processed.

Dynamic microphones are ideal for live recordings because they are more resilient. This means they are more durable and able to handle more abuse. Furthermore they are better for recording music as they can capture a wide range of frequencies. In addition a condenser microphone has better sensitivity to subtle nuances of sound.

A condenser microphone’s dynamic range is the difference between its maximum SPL and its noise floor. Most microphones cannot cover the full range of SPL so choosing the right microphone is an important design decision.

Dynamic range of a dynamic condenser microphone

When it comes to selecting a microphone there are many factors to consider. First you need to decide whether you want to use a condenser or a dynamic mic. Both types of microphones have different sensitivity. Generally condensers are more sensitive than dynamic microphones. However you should choose the sensitivity of a microphone depending on your job requirements.

Dynamic condenser microphones come in a variety of patterns. Cardioid mics for example are more directional than their condenser counterparts. Cardioid polar patterns have a narrow pickup pattern in the high-frequency range so people perceive them as having more focus.

While most dynamic microphones can manage without power some require a power supply. The power supply supplies the impedance converter and charges the electrodes in a dynamic microphone. The noise coil which is typically not included in a dynamic microphone can reduce unwanted feeds from a microphone. However many popular dynamic microphones do not use a noise coil.

If you’re recording vocals you should consider a dynamic microphone. Although they don’t require phantom power they can record loud sources. This makes them great for recording vocals. However if you’re recording vocals at home you’ll need a condenser microphone with a large diaphragm that uses phantom power.

Frequently Asked Questions About Microphones

Frequently

Getting a good sound from a microphone can be difficult. There are many variables to consider when using a microphone including your sound card’s driver and how the microphone is set up. Here are some tips to ensure you get the best sound from your microphone. First make sure that your microphone is connected. If it is not turn it on and check the connection. If it still does not work it could be that your sound card driver is out of date. If so you can update it from the manufacturer’s website.

Getting a good sound from a microphone

There are a few simple tips for getting a good sound from your microphone. For a good quality recording you’ll want to avoid adding a lot of bass or sibilance. These sounds are typically in the four to eight-kilohertz range and will be easily corrected with an EQ.

First determine what you’re recording. A microphone’s frequency response graph displays how well it reproduces acoustic signals. A stronger or weaker tone will appear as a slight dip or hump on the graph. Learning how to read a frequency response chart can help you find the right microphone for your recording project. Once you have an idea of what you’ll be recording you can choose a microphone that matches the environment.

You’ll also want to consider the acoustics of the room in which you’re recording. While you might think that the volume of your microphone is the main factor that determines the quality of your recording a bad room acoustics can reduce the quality of your recordings.

Getting a good sound from a condenser mic

When selecting a condenser microphone it’s important to pay attention to the frequency range which is the range of frequencies that the mic can pick up. Most condenser mics cover the entire audible frequency range but some may have a higher or lower top end which can affect instruments like acoustic guitars. A frequency response graph will show you how the microphone responds to different frequencies. If it responds more to a certain range of frequencies it’s likely to produce a better sound.

Because of their wide frequency range condenser mics can capture a lot of detail. A condenser mic is especially good for recording vocals as it can pick up top-end details and enhance vocal dynamics. However this means that you must be careful in how you set up your condenser mic.

The environment in which you record also has a huge impact on the sound of your recordings. If you’re recording in a noisy room you may notice a muddy sound. To improve this move to another room where the acoustics are better.

Getting a good sound from a dynamic mic

Getting a good sound from a microphone can be a challenge especially if you’re recording vocals or instruments. The problem is that dynamic microphones can produce a sub-par sound because of their low volume. It’s also important to use the right supporting hardware including a microphone preamp.

If you’re recording a guitar you can use a dynamic mic to capture its sound. The key is to get close enough to the instrument to avoid unwanted reflections. The optimum distance for miking a guitar is somewhere between the sound hole and the fretboard. Otherwise you risk unwanted feedback and distortion.

Besides picking the right dynamic microphone for your recording needs you should also consider the characteristics of the recording environment. You can use a dynamic mic for live performances or a recording studio. You’ll get a better sound from the dynamic mic than a condenser mic.

Getting a good sound from a shotgun mic

Getting a good sound from a shootgun mic is an important part of video production. After all audio can tell a story just as well as visuals. Getting a good sound from a shotgun mic can greatly improve the quality of your video productions.

Unlike other microphone types shotguns do not need an amplifier to produce sound. The polar pattern of the shotgun mic is hypercardioid which rejects ambient background noise and unwanted off-axis sounds. This type of microphone is commonly used in film and television productions.

Shotgun microphones are used to capture dialogue. The pickup pattern is narrower with these microphones so careful positioning is important. It is best to position them above the subject to achieve the best sound. This will allow for clear dialog and minimize environmental noise. You can use shotgun microphones on cameras boom poles and other accessories.

A good shotgun microphone is considered the gold standard of audio recording. However the microphone should be chosen based on the type of camera and project. For some projects a lavalier mic or a directional condenser mic may be more suitable. The great thing about this type of microphone is that it is flexible enough to be used in a variety of situations.

Conclusion

Thank you for taking time to read our post on the best bluetooth microphone and speaker. We hope that we were helpful enough to you and that you will make the best purchasing choice from the information youve read here.

Our team of experts at best bluetooth microphone and speaker is on call 24/7 as well as adding new products from the range of ones weve suggested. We could also downgrade or improve the performance of one of the products if there is a noticeable improvements in efficiency.

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