Features : 360 degree surrounding and potable wireless Bluetooth speaker with metal materialSupport Bluetooth hands-free function with touch keyBluetooth EBD V2.1; support AUX audio inputDC 5V input; 5W outputBuilt-in 3.7V/600mAh rechargeable batterySupport Bluetooth protocol: HSP V1.2,HFP V1.5,A2DP V1.2,AVRCP V1.0Output frequency of 3W speaker : 80dB at 0.5mAudio SNR: >65d; Distortion: 0.5%Mini 5 pin USB charge terminal : DC 5V ; 3.5mm audio AUX inputCharge time: within 3 hoursPlaying time :above 5 hoursStand-by time: above 90 days Specifications : FM Radio : NoColour : SilverType : PassiveBattery Capacity : 600mah lithium batteryCharging time : 2-3 HoursPlaying time : Above 5 hoursTransmission Range : 10M-15MInterface Type : USBChannels : 1Loudspeaker Acommodation Mode : Touch keyBluetooth Chip : Bluetooth version : V2.1Brand : LVVMaterial : Aluminium AlloyFrequency Response : 40HZ-20KHZTHD : ≤0.5%SNR : ≥65dBCharging Voltage : DC 5VRated power : 3WLoudspeaker : 4Ω 3W Support : Bluetooth, AUX inProtocol : HSP V1.2,HFP V1.5,A2DP V1.2,AVRCP V1.0.Function : Bluetooth (transmission:10meters) /USB/Hands-free calls function/Touch keyDimensions : 90 mm x 59 mmWeight : 365 g Package content : Speaker, USB charging cable, Audio cable, User manual