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Description:The earphone can provide you with a more comfortable wearing experience due to its ergonomic ear hook design. And it uses advanced noise reduction technology, which makes the sound quality still excellent in any noisy environment.Featuring a high version of the Bluetooth-compatible 5.2 solution, these headphones offer ultra-low power consumption, superb battery life and effective hearing protection.It is constructed of ABS material.The length of this earphone is 5cm, the width is 4.5cm and the height is 1cm. This wireless earphone is suitable for running, driving, listening to music, doing sports, calling and so on.Item Name: EarphoneMaterial: ABSBluetooth-compatible Version: V5.2, EDRWireless Frequency: 2.4GHZSupport Protocol: A2DP1.3, HFP1.6, HSP1.2, AVRCP1.6, D11.3Transmission Distance: 200cmBattery Capacity: Binaural 90mAhCharging Voltage/Current: 5V/1APlayback/Talk Time: Approx. 11 HoursCharging Time: Approx. 2 HoursStandby Time: 180 daysSpeaker Impedance: φ16mm 32ΩMicrophone Sensitivity: -42DbOperating Temperature: -10 Degrees Celsius to 50 Degrees CelsiusActive Noise Reduction: SupportPlayback Control: YesUsage: On-earFeatures: Long Battery Life, Bone Conduction, Intelligent Noise ReductionSize Details:Size: 5cm x 4.5cm x 1cm/1.97" x 1.77" x 0.39" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:2 x Earphone1 x Data Cable1 x User Manual