ReSpeaker 4-Mic Array AI Voice Quad-microphone Expansion Board for Raspberry Pi 4B

Features :
 

1. Raspberry Pi compatible(Support Raspberry Pi 4B/3B+/3B/ZeroW/Zero1.3)
2. 4 Microphones
3. 3 meters radius voice capture
4. 2 Grove Interfaces
5. 12 APA102 User LEDs
6. Software Algorithm: VAD(Voice Activity Detection), DOA(Direction of Arrival) and KWS(Keyword Search)

Please note that there are no any audio output interfaces on ReSpeaker 4-Mic Array for Raspberry Pi. It is only for voice capture. And you could use the headphone jack on Raspberry Pi for audio output.

Specification :
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1. Dimensionsï¼?65mm x 65mm x 9mm
2. Weight ：G.W 20g    
3. Battery ：Exclude
4. MICï¼?nbsp; 4 analog microphones
5. LED ï¼?2 APA102 programable RGB LEDs, connected to SPI interface
6. Raspberry Pi 40-Pin Headers ：support Raspberry Pi Zero, Raspberry Pi 1 B+, Raspberry Pi 2 B and Raspberry Pi 3 B
7. AC108 ：highly integrated quad-channel ADC with I2S/TDM output transition

Package list :
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1 x ReSpeaker 4-Mic Array

( not include raspberry pi )