Description:Type:SpeakersConnection:WirelessStyle:On-EarFeatures:Bluetooth， Portable， Volume ControlHigh quality stereo speakerBluetooth synchronous broadcasting functionPowerful and clear sound in unique designCompatible with iphone\/ ipad\/cellphoneBasic Function:Bluetooth +AUXRated Power:3WInput Power:power adapter\/USB\/lithium battertBluetooth Protocol:V2.1+EDR Class 2Fre. range:2.4GWorking distance:=!#!amp!*!lt;10 metresSeparation:80dBDistortion:1%(3.7V，1KHz，1W)SNR:82dBWorking volltage:DC 3.7VCharging volltage:DC 5.0VBattery Capacity:400mAh(built-in)Package included:1 x Bluetooth speaker1 x USB cable