Compact USB Pick Up Microphones Smart Kiosk Voice Interaction Terminal 5V Powered
M20 compact USB microphone board module for smart kiosk voice interaction: 38x38mm footprint, 5V USB powered, DSP array and Type-C + 3.5mm output.
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M20 Compact USB Microphone Board Module for Smart Kiosks
Terminal designers need voice input without bulk. The M20 board module packs a full 4-mic DSP array into a 38mm x 38mm main board with a slim 53mm x 6mm mic strip, and runs from a single 5V USB rail at 0.5W.
Integration Highlights
- Smart Kiosk Voice Interaction: far-field 4-mic pickup for touch-free self-service.
- 38mm x 38mm Main Board: ultra-slim profile that fits bezels and housings.
- 5V USB Low Power: 100mA max draw, no bulky power circuit needed.
- Plug-and-Play USB Audio Class 1.0: plus 3.5mm analog output for legacy hosts.
Technical Specifications
| Item | Specification |
|---|---|
| Microphone Type | Dual directional independent pickup array, 4 MIC |
| Pick-up Distance | Best within 3m |
| Audio Capture Rate | 16kHz / 48kHz @ 16bit |
| Protocol | USB Audio Class 1.0 (UAC1.0) |
| Sensitivity | -26 ±1dB |
| SNR | 65dB(A) |
| Off-angle Voice Suppression | ≥12dB SPL |
| Noise Reduction | ≥20dB |
| Directivity | ≥60° (dual directional) |
| Algorithms | Voice Enhancement, Beam-forming, Directional Pickup, Noise Suppression, AGC |
| Interface | 1 x USB Type-C + 3.5mm headphone / audio output |
| Power | USB 5V ±5%, 0.5W (5V, 100mA max) |
| Main Board Size | 38mm x 38mm |
| Mic Board Size | 53mm x 6mm |
| Working Temperature | -10 to +60°C |
| Storage Temperature | -20 to +70°C |
Where It Fits
Smart kiosks • self-service terminals • interactive displays • digital signage • ticketing machines.
OEM & Customization
Cable, connector and enclosure integration supported. Anti-static packing and OEM/ODM cartons available. Contact us for samples and quotes.