DIMENSION (W x H x D) 158 x 57 x 31mm DRIVE 2" Full Range x 2 POWER OUTPUT 5W x 2 CONTROL Dc in(USB ), Line in PACKING 24Pairs/ctn/1.55cuft Optional: Ac Adaper DIMENSION: 65.5 x 40.3 x 21.4mm Ac in:110~240V Out: DC6V 0.4A