Features: 1) Recharge: USB charging,USB download charging, independent charging 2) Compatible with CD player, PC/MAC, MP3 player, DVD player 3) Mute function 4) Suitable for: IPOD, SONY, SONY, ERICSSON, SUMSUNG, MP3, MP4 Specification: 1) Output: 2X5W (stereo) 2) Resond Frequency: 100Hz - 18KHz 3) Input sensitivity: 500mV - 1.5V 4) Voltage: AC 220V / DC 12V (50Hz - 60Hz) Packing: 1pc/gift box, 10pcs/ctn CONTACT ME TO GET THE PRICE!