Features:1. Comfortable to Wear: Not into the ear design with a rotatable headset can be adjusted at will no vibration even if the long time to wear will not swell pain.2. Long-lasting Battery Life: The charging compartment combines charging and storage and intelligent display of power the headphones can continue to listen to songs all day when fully charged.3. HIFI Sound: With moving coil unit rich layers more surging and powerful bass bringing you pure and lossless sound quality so you can enjoy.4. Applicable Scenes: Suitable for safe driving Express delivery rider delivery office work and listen to music.5. After-service: If you have any questions after receiving the product please feel free to contact us and we will provide you with a satisfactory answer.Specification:Bluetooth-compatible Version: V5.2Transmission Distance: 10mBattery Capacity: 130-140 mASpeaker: 13mmUsage Time: 20+ hoursStandby Time: 88 hoursCharging Time: 2 hours includes: 1 * Earphone1 * Charging Line