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- 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
Omnidirectional microphone
Main Features
# Applicable scenarios: personal office, small meeting rooms, carry-on travel, etc.
# Plug and play: Bluetooth conference room 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.
Model | VHD-M300 |
Name | Omnidirectional USB microphone SpeakerPhone |
Meeting capacity | |
Covering area | 15-30 Square meters |
Number of participants | 6-12 people |
Connection mode | USB2.0, Bluetooth |
Microphone | |
Type | Omnidirectional |
Microphone array | Built-in four omnidirectional microphones form a ring array, 360° omnidirectional pickup |
Pick up distance | 6m |
Frequency response | 100Hz~8kHz |
Audio S/N | 65dB |
Speakerphone | |
Type | Full frequency speaker |
Sensitivity | 88 dB SPL at 1/2 meter peak |
Power consumption | 3W, 5W at max. |
Frequency range | Call mode: 150Hz ~ 8kHz; Music mode: 150Hz ~ 16kHz |
Volume | 84dBA (distance of 1m) |
Audio | |
Audio Feature | 32K sampling rate, high-definition broadband audio, full-duplex voice |
USB Protocol | Support UAC2.0 |
Full duplex echo cancellation | Support |
Noise suppression | Support |
Gain control | Support |
Connection mode | |
Wireless | Built-in Bluetooth data communication (Bluetooth 5.0); Support AVRCP, A2DP, HFP and SBC codec and other standard protocols; |
USB | USB data communication, audio input/call |
Audio | AUX 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; |
Key | Touch button (mute button with light indication) |
Environment condition | |
Rechargeable battery | Battery specification: 6500mAh; Full charge time: 4 hours (5V/2A); Maximum charging current: 2A; Talk time: 24 hours |
Dimension | 124m * 124mm * 32mm (without package) |
Net Weight | 0.32 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) |