2.0HIFI dual channel with each channel output 10W; 90% high efficiency It uses PAM8610 chip which is 10W (per channel) D-level stereo audio amplifier With overcurrent / overheating / short circuit protection, so safe to use Low THD + N (0.1%) without filter; Small static current; Low energy consumption; Small heat generator Low EMI; With power off/noise cancellation function; Small noise generator trademark Reg.NO:013726393 This board uses the PAM8610 chip, the PAM8610 chip is a 10W level D stereo audio amplifier (per channel). This board is protected against overcurrent, temperature and short circuit. Feature: Working: Class D Quiescent Current: 20mA Efficiency: 90% Rated power output: 10W +10W (8) Frequency response: 20Hz to 50KHz Operating voltage: DC7.5-15V Recommended supply voltage: 12V, 12VDC center PIN is +. PCB size: (40*40)mm NOTE: It is not acceptable to connect the L & R speaker outputs together. Package includes:< br/>1x Mini Amplifier Board Note: The data is all measured manually, please allow 1-3cm error, due to the difference in light and temperature. display, there will be a certain color difference, the actual object received shall prevail.