Features: Bluetooth-compatible 5.0 Chip: Effectively solve the headset and Android connection instability, faster and more stable connection, and more compatible. 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. Fingerprint Touch: Just a click of the fingertips can achieve rapid recognition, easy to understand the operation, say goodbye to the tedious. Separate Design: Both headsets can be connected to the same phone at the same time, or can be used independently with a single 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 Talk Time: 6h Playback Time: 5h Standby Time: 10h Charging Time: 2h Headset Battery Capacity: 30mAh Battery Capacity of Charging Compartment: 250mAh