DWEII DC 5V-12V Micro Electret Amplifier MIC Condenser Mini Microphone Amplifier Board 3PCS

❃❃Power amplifier board positive and negative access 5 ~ 12V DC power supply, please do not reverse, otherwise it will burn out the module; ❃❃Operating voltage: 5V-12V; Operating current: 1mA (static) ~ 150mA (max); Output speaker impedance: 4 Ω-32 Ω; Support the speaker power: 0.5W-25W； Output power: 750mW (max); ❃❃SIZE:20 x 12 x 6mm / 0.79 x 0.47 x 0.23inch(LxWxH) ❃❃Input support: electret, microphone, condenser microphone, moving coil microphone, audio signal; Support the speaker power: 0.5W-25W (supported speakers power does not mean that it can emit a loud enough sound, it is generally recommended to add a power amplifier to increase the output power); ❃❃Used for microphone preamplifier effect good, noise and AC ripple is very low, the output signal voltage greater than 1V or more, to promote the power amplifier signal strength.