ModelSOUNDO-1
"ABS Plastic Sport Bluetooth speaker with Mic Function and wrist straps *Bluetooth Version:4.2+ EDR, *Case:ABS plastic, *Power capacity: 4W, *Impedance:4Ohm, *Sensitivity:80dB, *Frequency Range:2.402GHz to 2.480GHz *Battery Capacity: Built-in rechargeable(lithium-Polymer)battery 380mAh, *Operation Range: 8- 10 Meters, *Playing time: 3-4 hours, *Built-in Microphone, *Accessories:Wrist straps