... : DC 5 Volt(li-lon Battery inside) USB power cord* Output Power: 3w+3w* Driver Unit: 52mm speaker , 4ohms* Frequency Response: 150- ... 18Khz Packing:* Packing Content: Speaker, ,remote control,USB Power Cord,2.5mm docking, nuokia docking,2 head 3.5mm stereo ... cable,Nokia 5C Battery* Product size:23.7*11.5*8.9CM*Packing: each in a clamshell,20 pcs ...