Portable USB Conference Speakerphone Bluetooth 360 degree
Portable USB Conference Speakerphone Bluetooth 360 degree
Portable USB Conference Speakerphone Bluetooth 360 degree
Portable USB Conference Speakerphone Bluetooth 360 degree
Portable USB Conference Speakerphone Bluetooth 360 degree
Portable USB Conference Speakerphone Bluetooth 360 degree
Portable USB Conference Speakerphone Bluetooth 360 degree

Portable USB Conference Speakerphone Bluetooth 360 degree

Model NO.:
  • Product Name:Portable USB Conference Speakerphone Bluetooth
  • Color:Silver
  • Application:Audiovisual Project
  • Feature:Reverse charging
  • Suitable for:Huddle and middle room
  • Warranty:1 Year
  • Bluetooth:Supported
  • Type:Audio Conference System
  • Place of Origin:CN
  • Brand Name:None /OEM / ODM
  • Model Number:M300
Product Description

Omnidirectional microphone

Main Features

# Applicable scenarios: personal office, small meeting rooms, carry-on travel, etc.
# Plug and play: Portable USB omnidirectional microphone (SpeakerPhone), which can be quickly connected to a computer or mobile phone to join a conference via Bluetooth or USB, simple and convenient, plug and play.
# Intelligent connection: It can connect and pair with 2 Bluetooth-enabled devices at the same time. A device connected to the M300 via Bluetooth can conduct a hybrid conference with another device connected to the M300 via USB.
# Microphone array: Built-in four-microphone arrays, 360° omnidirectional sound pickup, full-duplex audio technology, can better pick up and call at a long distance, more accurate listening position, intelligent noise reduction, automatic gain, echo cancellation.
# Using Bluetooth 5.0 technology, compared with the previous generation technology, the transmission rate is increased by 2 times, and the transmission distance is increased by 4 times. It is better to transmit high-quality audio wirelessly with mobile phones/tablet devices to achieve wireless Bluetooth streaming.
# Support emergency power failure for mobile phones and other devices via USB, reverse charging, multiple circuit protection.
# Built-in 6500mAh large-capacity battery, ultra-fast flash charge, continuous energy, long-lasting battery life.
# Bar-shaped RGB indicator light, with a variety of colors, allowing users to easily identify the current power, volume, incoming call, mute and other working status of the product, and the operation is convenient and simple.
# Small and exquisite appearance, easy to put in your pocket, convenient to carry.


NameOmnidirectional USB microphone  SpeakerPhone   
Meeting capacity
Covering area15-30 Square meters
Number of participants6-12 people
Connection modeUSB2.0, Bluetooth
Microphone arrayBuilt-in four omnidirectional microphones form a ring array, 360° omnidirectional pickup
Pick up distance6m
Frequency response100Hz~8kHz 
Audio S/N65dB
TypeFull frequency speaker
Sensitivity88 dB SPL at 1/2 meter peak
Power consumption3W, 5W at max.
Frequency rangeCall mode: 150Hz ~ 8kHz; Music mode: 150Hz ~ 16kHz
Volume84dBA  (distance of 1m)
Audio Feature32K sampling rate, high-definition broadband audio, full-duplex voice
USB ProtocolSupport UAC2.0
Full duplex echo cancellationSupport
Noise suppressionSupport
Gain controlSupport
Connection mode
WirelessBuilt-in Bluetooth data communication (Bluetooth 5.0);
Support AVRCP, A2DP, HFP and SBC codec and other standard protocols;
USBUSB data communication, audio input/call
AudioAUX output, connect to speakers through 3.5mm audio cable for music play
Power(1) Input: USB Type-C interface, the external power supply supplies power to the M300 device through the USB Type-C interface;
(2) Output: USB Type-A interface, M300 charges mobile phones and other peripherals through the USB Type-A interface;
KeyTouch button (mute button with light indication)
Environment condition
Rechargeable batteryBattery specification: 6500mAh;
Full charge time: 4 hours (5V/2A);
Maximum charging current: 2A;
Talk time: 24 hours
Dimension124m * 124mm * 32mm (without package)
Net Weight0.32 kg
Working temperature• Temperature: 0°C ~ 40°C (working state), -40°C ~ 60°C (non-working state)
• Relative humidity: 45% ~ 90% (working state), 30% ~ 90% (non-working state)
Item image

 M300 NO LOGO -750 -1.jpgM300 NO LOGO -750 -2.jpgM300 NO LOGO -750 -4.jpgM300 NO LOGO -750 -5.jpgM300 NO LOGO -750 -6.jpgM300 NO LOGO -750 -7.jpg

Company Information


ValueHD Corporation 

ValueHD Corporation is a professional AV integration and conference solution supplier, Stock No.: 871053. Since founded in 2008, the company has been focusing on the high-definition video camera and its accessories. Its products range from HD video conferencing camera, to 4K cameras with intelligence analysis capabilities, MCU, All-in-one camera, microphone and etc. 

The company's core competence lies in deep understanding of the industry user needs, many years of experience in video communication, ability to convert advanced technologies into product, sincere customer service, and flexible business model.

We welcomes customers from all over the world! OEM/ODM available!




1. Q: Are you Manufacturer or Trading company?

A: Manufacturer with more than 10 years experience.


2. Q: What's your main products?

A: We have been focusing on the production of HD&4K video cameras and its accessories since our foundation in 2008.


3. Q: Can you do OEM / ODM for us?

A: Of cause. Let us know what you need, we'll do it for you.


4. Q: Can we visit your factory?

 A: Yes, warmly welcome to visit our factory anytime, our factory is only half an hour driving from the Baoan Airport.


5. Q: If there is any problem about your products, should we have a refund or replacement?

 A: If there is any problem within one year, you will get a brand new replacement.


6. Q: What is your delivery time?

 A: For samples, within 2 working days after payment received. For bulk order, it depends on your quantity and requirements on OEM / ODM.





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