DIMENSION (W x H x D) Woofer: 180 x 86 x 77mm DRIVE:2 Full Range x 2 POWER OUTPUT:5Wx2 CONTROL: On/Off,Play/Pause,Prew/Vol-,Mode,Next/Vol.+,USB/SD FEATURE:SD/MMC Card Reader and USB function,Built in rechargeable 800MA Lithium Battery OPTION:Remote control &FM Radio PACKING:24sets/ctn/1.95cuft