(Mode) Two modes: Bluetooth mode/TF mode, free to listen to , no need for a mobile phone, rid of cumbersome troubles, listen to more freely, 12mm diaphragm shocks heavy bass. (Endurance) 20 hours of music playback, -capacity battery, you can listen to from morning to night, truly achieve long battery life 18-20H continuous playback, 300mah passenger capacity battery, is not in the ear, comfortable and does not fall, minimalist beauty shows personality . (Beautiful) Small and not in the ear, does not hurt the hearing, wears without , out of the street to play, small and outstanding, out of the street. (Sound quality) Bluetooth 5.2 bass is more shocking, true bone conduction, showing more music details, beautiful , deep bass, clear midrange, 360degree sealed cavity to without disturbing people, avoiding embarrassing sound leakage, blessing effectively reduces Noise, considerate privacy, avoid sound leakage problems. (Scenario) type-c interface, stable without power failure, fast charging, convenient, stable voltage without damaging the headset, PX5 waterproof, high-definition microphone, easy communication, suitable for various scenarios, support for office meetings, driving, sports, use . Bluetooth version: V5.2 Wearing : Clip-on Support Android//Windows Wireless transmission range: more than 15 meters Manual , lossless sound quality Frequency range: 2.402GHz~2.480GHz Supported protocols: HFP 1.7, 1.2, A2DP 1.3, AVRCP 1.6 Transmission power: Class 2 max. 4dBm Sensitivity: 0.1% BER at -90 dBm Working voltage: 3.7V Charging voltage: 5V Operating temperature: -40Celsius ~ +85Celsius Headphone battery capacity: 230 mAh Standby time: 1000 hours Talk time: 15 hours Playing music time: 15 hours Headphone charging time: 1.5 hours Headphone size:: 39x30x28mm Product weight: 11g Colour:black Material:ABS Package Contents: 1 x Headphone 1 x type-c data cable 1 x Chinese and English manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.