USB charging input voltage: 5VCharging time， 2 hoursSpeaker rated power output 3WLithium battery specifications; 3.7VSignal to noise ratio: 90HZ-20K/65dBWith MP3\ AAC SBC\ audio decoding functionCompatible with A2DP\AVRCP high quality stereo audio transmission and remote control protocolBluetooth hands-free mobile phone (HFP protocol)Bluetooth using band: 2.4000GHZ--2.4835GHZEffective wireless transmission distance up to 10 metersPacking material:Packing weight: 130gOuter case: 387x292x375mmQTY: 80 PCSG.W: 10.5kgBrands: OtherModel: 10No Display:There is a radio function: If noPink blue， Color:， yellow， black， red， greenThe standard Specification:Effects: Sound 3 surround DEnclosure material: engineering plastic Speaker: