Far-field voice capture Support USB Audio Class 1.0 (UAC 1.0) Four microphones array 12 programmable RGB LED indicators Speech algorithms and features Voice Activity Detection Direction of Arrival Beamforming Noise Suppression De-reverberation Acoustic Echo Cancellation Specification Sensitivity: -26 dBFS (Omnidirectional) Acoustic overload point: 120 dBSPL SNR: 61 dB Power Supply: 5V DC from Micro USB or expansion header Power consumption: 5V, 180mA with led on and 170mA with led off Max Sample Rate: 16Khz Application Speech algorithms and features USB Voice Capture Smart Speaker Intelligent Voice Assistant Systems Voice Recorders Voice Conferencing System Meeting Communicating Equipment Voice Interacting Robot Car Voice Assistant Other Voice Interface Scenarios Color: Black Material: PCB Package Contents: 1 * reSpeaker Mic Array Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.