[Bluetooth 5.3 & HD original HIFI sound quality] The Bluetooth chip I20 of the Bluetooth 5.3 version non earplug bone conduction headset is used, with stable signal, low standby power consumption and better performance. Graphene vibrating plate+APTX audio decoding, accurate treble, sweet mid-range, stable bass [HD noise elimination call] The dual microphone design with ENC noise elimination function enables clear call just like face-to-face conversation. The bone conduction headset without earplug Bluetooth has the function of automatic noise reduction for binaural communication, enabling clear stereo surround sound. Waterproof and sweat resistant, do not worry about injury caused by sweating [Earphone design without earache] Comfortable design based on ergonomics. The ear clip wireless Bluetooth will not cause your ears to feel swollen and painful if you wear it for a long time. The ear clip design of the bone guide earphone is novel, comfortable to wear, painless, and can be used regardless of the size of the ear. [Mini size & portable, intelligent touch control] Bluetooth headset clip headset is small and compact; It is smaller and more convenient, and it is safer to travel. Music control, telephone answering/disconnecting, simple touch operation. Built in earphone hole switch that does not block ears, open the cover for pairing, and carry universal Bluetooth corresponding to various devices. [Low power consumption & long battery life] New 5.3 chip+enhanced battery, low power consumption and long battery life, you can enjoy TV program capture and games. The bone conduction headset can be used up to 6 hours with a single full charge of Bluetooth. When used with the charging case, the playback time of both ears can be up to 35 hours