Teaching Microphone with External USB HID
In the field of educational microphone applications, our company has accumulated over a decade of industry experience. To achieve the 'one teacher, one microphone' functionality, we have progressed from the initial simple close-range pairing design to the current system design concept. This evolution showcases our deep industry engagement, understanding of customer habits and environments, and our continuous efforts to address customer pain points. This solution comprises an educational wireless microphone, a receiver module, and a USB page-turning receiver, capable of functions such as amplification, recording, air mouse, and page flipping through keyboard shortcuts.
Automatic Channel Allocation
Pre-set Number of Channels: 14, Supports One Transmitter to Multiple Receivers; Multiple Sets Can Be Used Simultaneously Without Interference
Strong anti-interference capability
Digital processing for audio transmission
Resistance to WiFi Interference
Wireless transmission with resistance to WiFi interference
Transmission Distance
Wireless transmission distance of over 50 meters in open areas
Portable
Built-in PCB board antenna, ideal for portable products
Ready-to-Use
Designed for one teacher, one microphone; the teacher can use it in any classroom by simply turning it on
Quick guide download
Specification Items | Audio Transmission Module | Audio Reception Module |
---|---|---|
Power Supply Voltage | 5V | 5V |
Current Consumption | <45mA | <25mA |
Operating Temperature | -10 ℃ ~ +70 ℃ | -10 ℃ ~ +70 ℃ |
Frequency Range | 2400~2483.5MHz | 2400~2483.5MHz |
Number of Channels | 14 | 14 |
Modulation Type | GFSK | GFSK |
Transmission Power | 17dBM | |
Input Impedance | 1OK Ohm | |
Input Level | 2.8Vp-p(Max) | |
Receiver Sensitivity | -85dBm(Min.) | |
Output Impedance | 32 Ohm | |
Output Level | 2.8Vp-p(Max) | |
Audio Latency | <10ms | <10ms |
Frequency Response | 10~8KHz,±3dB | 10~8KHz,±3dB |
Dynamic Range @1kHz | 81dB | 81dB |
Total Harmonic Distortion | 0.1% | 0.1% |
Quick guide download
One-to-One Microphone Pairing: Bidirectional pairing, needs to be paired again every time it is powered on. Saved ID Code Pairing: Bidirectional pairing, only needs to be paired once, can be used after powering on in the future
Adjust the headphone amplifier of the receiving module
Mouse Middle Button, Left Click, Right Click
Page Up/Page Down, Draw, Clear Drawing, One-Click Black Screen, etc
revious/Next Track, Play/Pause, Computer System Volume Increase/Decrease
Built-in USB microphone, USB keyboard, USB mouse. Plug and play for the operating system
After successful pairing between the transmitter and the audio module, the transmitter also pairs with the USB receiver at close range
Quick guide download