Description There be no noise when playing with USB or memory card. In addition connect to four speakers rated at 40 watts, it can also be connected to an active subwoofer, which has no power limit. The blue screen is of fine quality and more than the red screen. With BT, USB, memeory card reading and remote control function. DC/AC power in, suitable for both home and your car. Channel: 4.1 Load impedance: 4-8 Power: 4 * 40W Battery: CR2025, 3V, 150mAh Plug Type :EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage: AC 220V Colour:black Material:Metal Package Contents: 1 x Audio Amplifier 1 x Remote Control 1 plug 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.