WINGONEER 12V PAM8610 Mini Class D Digital Power Amplifier Board 2 X15w Dual Channel Stereo Supply voltage: DC 6V-15V Recommendation voltage: DC12V 2A Output power: 10W * 2 (8) 15W * 2 (4) Channel type: Double Channels Amplifier board size: 28mm * 22mm * 2.5mm