Mini Stereo AMP Audio Amplify Module Board, 10W+10W Dual Channel Amplifier Class-D 12V DC Adopts PAM8610 chip, no filter, low static current, EMI, power consumption and heat generating. With 5.5 DC outlet as power supply interface; high efficiency of 90%. With LED power supply indicator, power supply switch and mute switch, easy to operate. Operating voltage: DC7.5-15V, recommended power supply: DC12V. Safe for use-With over-current, temperature, short-circuit protection