Bluetooth Earphone Sport Running with Microphone Neckband Free Answer Control Ear Hook for Xiaomi Huawei Phone

Description:? Battery capacity: earphone 80mAh polymer lithium battery? Charging power supply: AC input 110-240V DC output 5V? Transmission power: Class2 ? Radio frequency: 2.402-2.480GHz? Call duration: about 4 hours ? Play time: about 2-3 hours? Sound standby time: 50 hours or so? Charging time: 1-2 hours ? Noise reduction: built-in DSP noise cancellation technology? Operating range: 10 meters ? Charging interface: Micro-USB?Bluetooth version: V4.1 ? prompt voice: Chinese and English switching? Voice: Support ? Support Agreement: HSP/HFP/A2DP/SVRC?Material: ABS? Function: answering, hang up, listening to music pause/play, tail number redial, smart voice prompt, power display, noise reduction, upper and lower area switching, volume addition and subtraction? How to use: Press and hold the power button for about 5 seconds until the red and blue flashes, turn on the phone Bluetooth pairing: H5 Packing list: 1 x Bluetooth Earphone1 x USB Cable1 x User's Manual