Description: - With AGC (Automatic Gain Control) function, it is suitable for hearing aids, conference microphones, megaphones and other equipment. - The output can directly drive the ordinary 32-ohm headphones (if you need a larger output, you need to add pre-amplifier or amplifier at the output). - Suitable for use with a single 18650 battery or mobile phone battery. - AGC switch: When the jumper cap is not connected, the AGC function is on, and the jumper cap is connected (with jumper cap). - Working voltage: DC 3.6v-12v Specification: Product Size: approx. 30x25mm/1.18x0.98inch Package Includes: 1Piece Microphone Amplifier Board Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, Thank you!
