Features: HIFI Sound: With 10mm moving coil unit, rich layers, more surging and powerful bass, bringing you pure and lossless sound quality, so you can enjoy. 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. 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. Lightweight and Portable: The volume is very small, whether it is held in the hand or put in the bag, you can carry with you to facilitate going out. 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: 5.0 Transmission Distance: 10m Battery Capacity: 400mAh Talk Time: 6h Music Time: 8-10h Standby Time: 180h