Onboard 6 + 1 MSM261S4030H0R silicone microphone, support left and right channel output, 3 left channel microphones (M0/M2/) + 3 right channel microphones (M1/M3/M5) + 1 microphone right sound Road (M6) Communication interface: 12s, sound pressure level: 140db SPL,Sensitivity level: -26 (dB, dBFS @ 1 KHz 1 Pa) Signal to noise ratio 1.5: 57dB (20KHz bandwidth, A-weighted) HD Less than 1% (100dB SPL @ 1 KHz S = nominal RloadGreater than 2 K) Clock frequency: 1.0-4.0 MHz (normal mode), 150-800 KHz (low power mode) size:89.7*78.8mm Material:PCB colour:Black Package Contents: 1 * 6+1 I2S Microphone Array Module Only the above package content, other products are not included. Note: Light 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.