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