Features: Delicate Listening: Combined with the characteristics of the human ear hearing, like to bring a natural balance and not lack of real detail level of listening. Comfortable to Wear: Ergonomic features, all-weather comfortable wearing feeling, with a solid rear hanging, even in the process of strenuous exercise is difficult to fall off. 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. Anti-slip Keypad: Highly polished thread design, not only beautiful atmosphere, but also convenient for you to easily control the functions of the headset. 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 Headset Capacity: 40mAh Charging Compartment Capacity: 500mAh Headset Charging Time: 1.5h Charging Compartment Charging Time: 2h Charging Input:5V=1A