Product detailsSimultaneously connect two phonesImitation protein leather? Soft ComfortWired+wireless, double enjoyment.?90? rotation ear-muffSpecification?Chip:JL6925Bluetooth Version: V5.0Product size: 175*175.5*80mmNet weight: 200gWireless working range: 10M (without obstacles )Speaker: ?40mmSpeaker sensitivity:? 111?3dB at 1KHz;1mWProfiles supported: A2DP,VARCP,HFP,HSPVImpedance: 32??15%Speaker frequency: 20Hz-20KHzInput voltage / current: DC 5V/210mABattery: 3.7V/600mAhPlaying time: 7-9HTalk time: 8-11HCharging time:2.5HStandby time: 400-500HVoice chat: SupportedMaterial: ABS+Aluminum alloySimultaneously connect two phonesImitation protein leather? Soft ComfortWired+wireless, double enjoyment.?90? rotation ear-muff