SPECIFICATIONS:Bluetooth 3.0 Version6-8 hours of operationAnswer an incoming callBuilt-in Rechargeable Battery: Lithium, 1200mAhVoltage when charging via USB-cable: 5 V DCFor Smartphones, tablets..
Features:Bluetooth v2.1 + edr; Range up to 10 m (depending on the operating
environment and the devices that connect to the speaker ); Output power 3 w ; Built-in battery : lithium , 530mach ; The frequency of 90 hz - 20 khz ; Sensitivity 80 db ;Dimensions 75x75x62 mm..