Product size:98*64*177.5mm Support Bluetooth 2.1 +EDR audio sources , hand free kit,TF card USB flash support Volume control charge indication, status indication * Battery capacity:800MA * Power Supply: DC 5 Volt * Output Power: 3W+3W * Driver Unit:40mm ,4ohms,The inner magnetic * Frequency Response: 100-18Khz *Bluetooth solution:JL Packing: Carton size:600*320*455mm Quantity / carton:50pcs N.W/G.W:29.1/30.1kgs