Parameters:Chip: Airoha AB1526PBluetooth version: V5.0Frequency range: 2402-2480MHZRF power: "6.0dBm"Support Protocol: A2DP HFP HSP AVRCPSupport audio decoding mode: SBC AACBluetooth Call Headset Protocol (HSP): V1.2Bluetooth Call Hands Free Protocol (HFP): V1.7Bluetooth music (A2DP): V1.3Bluetooth Music Remote Control (AVRCP): V1.6Bluetooth Advanced Music (APTX): Not supportedCommunication distance (accessible open space): ≥10MMaximum RF rating: "Class II"Standby time (connection status): standby current 0.6mA (main ear)Call time/music time: 3h/3.5h (maximum volume)Speaker specifications: 8mmSpeaker sensitivity: 95db (±3)Earphone battery type: lithium ion polymer batteryEarphone battery capacity: 50mAhCharging time limit: 1.5 hoursMaximum shutdown current: 4.9uAStandby current (connected and unconnected): "0.6mA/1mA (main ear, LED light flashes slowly)"Working current: 10mA-18mA (in call or music mode)Charging current: 40mAFully charged current: 0.3mAIndicator light: redCharging interface: TYPE-C chargingCharging voltage: 5VBattery full voltage: 4.16VPairing name: T9Mobile phone display Bluetooth headset battery power: (Apple / Android 4.0 or above) supportCharging case battery type: 18650Charging battery capacity: 6000 mAhCharging case battery size: about 18*65mm/0.71*2.56inNumber of batteries in the charging case: 2Charging case battery watt hours: 21.6 wattsCharging case battery lithium content (g): about 1.8gEarphone single size: about 25*19.5*26mm/0.98*0.77*1.02inCharging case size: about 104.5*55*30.5mm/4.11*2.17*1.20inList:1* charging cable2* earphones1* charging case1* instruction manual
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