Features: 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. Intelligent Noise Reduction: Even when you are in a noisy environment this headset allows you to talk clearly as if you were communicating face-to-face without being affected by noise. HIFI Sound: With moving coil unit rich layers more surging and powerful bass bringing you pure and lossless sound quality so you can enjoy. 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 Charging Time: 2h Standby Time: 100h Battery Capacity: 140mAh Talking Time: 7h Music Time: 8h includes: 1 * Earphone 1 * Charging Line 1 * Manual "