Features 1、Large Capacity: Double row symmetrical capacitors, large enough in capacity and quantity, with perfect filtering effect. 2、Volume Adjustment: The volume can be adjusted at will as required, this audio power amplifier board is highly practical to use. 3、Widely Use: This audio amplifier board can be widely used in store solicitation, home theater, square speakers, etc. 4、Stable Performance: The power amplifier board adopts excellent components, ensures long term stability. 5、Easy Operation: Power amplifier board has wide application range, convenient to use, compact in size, easy to install. Specification Item Type: Audio Amplifier Board Material: Board Quiescent Current: 25mA Horn Impedance: 4-8ohm Output Power: 15W (maximum 18W) Total Harmonic Distortion: 0.08% (Po=0.1 14W, RL=4ohm) Signal to Noise Ratio: 94-106dB (1-15W) Working Temperature: -25℃ to 85℃ Operating Humidity: 5% to 95% RH Package List 1 x Audio Amplifier Board 1 x Gasket 1 x Nut 1 x Accessory