ITEM NAME:Max9814 Microphone Agc Amplifier Board Module Auto Gain Control For Ardu ME Description 1. Supply Voltage: 2.7v-5.5v @ 3mA current 2. Output: 2Vpp on 1.25V bias 3. Frequency Response: 20Hz - 20 KHz 4. Programmable Attack and Release Ratio 5. Automatic gain, selectable max from 40dB, 50dB or 60dB 6. Low Input-Referred Noise Density of 30nV/ 7. Low THD: 0.04% (typ) Package included: 1PCS x MAX9814 Microphone AGC Amplifier Board Module.1PCS x MAX9814 Microphone AGC Amplifier Board Module. Automatic gain, selectable max from 40dB, 50dB or 60dB. Output: 2Vpp on 1.25V bias. Frequency Response: 20Hz - 20 KHz. Programmable Attack and Release Ratio.