Feature

●Parameters: Operating voltage: 5 V - 12 V; Operating current: 1 mA - 150 mA (max); Output speaker impedance: 4 Ω - 32 Ω; Speaker power: 0.5 W-25 W; Output power: 750 mW (max);
●Size: 0.8 x 0.5 x 0.2 inches (20 x 12 x 6 mm) / 0.79 x 0.47 x 0.23 inches (L x W x H)
●Note: Amplifier OUTboard connection speakers and speakers away from microphone to avoid self-encouraging noise. Power amplifier board positive and negative access 5-12V DC power supply, do not reverse Otherwise, the module will burn out
●Input Support: Supports electret, microphone, condenser microphone, moving coil microphone, and audio signals
●Package Contents: 2 x DC 5V-12V Micro Electrret, 2 x Electric Microphone, 2 x DC Female Power Pigtail Cables


Description

Description:
Operating voltage: 5V-12V (voltage below 5V is greatly reduced, the limit voltage can not exceed 15V);
Working current: 1mA (static) to 150mA (max);
Output Speaker Impedance: 4Ω-32Ω (Impedance treble, high efficiency);
Support Speaker Power: 0.5W-25W (In fact, you can use any power speaker. The volume and speaker power are not much relevant, as long as the output rating of the power amplifier on the line);
Output power: 750mW (max);
Input support: electret, microphone, condenser microphone, moving coil microphone, audio signal.

Note:
1. The IN and GND of the amplifier board uses shielded cable access electret microphone, access the attention of polarity. Electrolet after inverting is very little or no sound
2. Speaker connected to amplifier OUTboard and speaker away from microphone to avoid self-encouraging noise.
3. Power amplifier board positive and negative access 5~12V DC power supply, do not reverse Otherwise, the module burns out

Package Includes:
2 x DC5V-12V Micro Electric
2 x Electric Microphone
2 x DC Female Power Pigtail Cable