100% Brand New Input voltage: DC12-24V Input current: more than 5A Input impedance: 1K ohm Magnification: 45 times Output power: 80W * 2 Output impedance: 4-8 ohms Size: 96 * 33mm Weight: 60G colour: blue Material: metal Package Contents: 1pcs* audio amplifier board Only the above package content, other products are not included. Note: Light shooting 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.