I7s Binaural Wireless Bluetooth Headset TWS Earphone with Charging Bin Plating

Line Length:NoneWith Microphone:YesWireless Type:bluetoothConnectors:NoneWaterproof:NoCommunication:WirelessActive Noise-Cancellation:YesSupport Memory Card:NoVolume Control:YesControl Button:NoIs wireless:YesSupport APP:NoSensitivity:118dBStyle:Ear HookVocalism Principle:Balanced ArmatureFeaturesBluetooth version: EDRV4.2Voice: SupportSupport Protocol: HFP HSP A2DP AVRCPFunction: answering calls, hanging up call registration, hanging up, listening to music pause/play, voice report, tail number redial, caller number, smart voice prompt, power display, noise reductionBattery capacity: left and right ears: 55mAh, base 300mAhCharging power supply: AC input 110-240V DC output 5VTransmission power: Class2Wireless frequency: 2.402-2.480GHzCall duration: 2-3 hours or soMusic playback: 2-3 hours or soCharging time: 60 minutesNoise Reduction: DSP Intelligent Noise Cancellation TechnologyOperating range: 15 meters effective distanceCharging interface: Micro-USBCharging instructions:Headphone charging indicator: when the headphone is charging, the red light is on. When the red light is off, it is full charged.