Specification: Power Output : 2W MP3 Input Jack: 3.5mm Earphone Input Jack: 3.5mm LED Indicator Weight:100g Dimension: 60(L) x 43(W) x 150(H)mm Power: DC 9V or 6F22 Battery 1 piece (Not Included) Color: Black Package: 1 x Amplifier 1 x Earphone