Features: 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. Comfortable to Wear: Ergonomic features all-weather comfortable wearing feeling different designs of ear caps even in the process of strenuous exercise is difficult to fall off. Bluetooth-compatible 5.0 Chip: Effectively solve the headset and Android connection instability faster and more stable connection and more compatible. 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 Music Time: 10h Battery Capacity: 70mAh Charging Time: 2h Standby Time: 90days Transmission Frequency: 2.4GHZ Charging Voltage: DC5V includes: 1 * Earphone 1 * Charging Line 1 * Manual "