Power Supply: Can be powered by AC12V-AC17V or DC12V-DC24V with an input current 5A Input Impedance: 1K Ohm for optimal sound transmission Channel Configuration: Dual channel setup providing powerful output of 80W x 2 Recommended Power Supply: For best performance, a 24V amplifier power supply is suggested Input voltage: DC12-24V or AC12-17V Input current: 5A Number of channels: dual channels Output power: 80W*2 Input impedance: 1K2 Colour:green Material:PCB Package Contents: 1 * Digital Audio Amplifier Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.