Features: A new efficient digital amplifier, input DC6-15V, receive 15Wx2 power. This class D amplifier board adopts high performance PAM8610 amplification chip, with clear sound quality. Dual channel stereo brings you superior auditory enjoyment. Reasonable circuit layout, compact size, easy to install. Wide Application: Ideal for making MP3 / MP4, mobile phone, notebook, etc. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Operation Mode: D class (PWM modulation) Chip Model: PAM8610 Voltage Range: DC6V-15V(Protection) Recommended Voltage: DC12V (20mA) Cooling volume: No need to heat Channel Type: Dual Channel SNR: 90% Frequency Response: 20Hz-15KHz Static Current: 20mA Onput Impedance: 4-8 Harmonic Distortion: Output Power: 10W+10W(8 speaker box); 15W+15W(4 speaker box) Size: 45x48x18mm / 1.77x1.89x0.71in (exclude protruding part of the potentiometer)