1. Using high-quality materials. 2. Delicate and compact appearance 3. Easy to use 4. Effectively realize the function of voice chat or voice amplification 5. Wide range of applications The ultra-small microphone amplifier module can realize the circuit amplification of the condenser microphone head (pole microphone pickup), and the output of the board can be directly connected to the audio input terminal of the speaker or the audio input terminal of the computer to realize voice chat or voice amplification. It's a full-featured microphone Power supply: DC 2.5-9V Input: The board is equipped with a capacitive microphone (sensitivity 52D) Output: The board is equipped with an audio output interface Color: As Shown Material: PCB Package Contents: 10 x Pickup amplifier circuit module 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.