Description 1. Binaural Wireless Bluetooth Headphones. 2. Bluetooth version 5.0 Jerry scheme. 3. The battery capacity of the charging case is 600 mAh and the battery capacity of the headset is 35 mAh. 3. The duration of the call is about 5 hours, and the duration of the music is about 3 hours. 4. Single ear double ear small body mini invisible. 5. Portable storage is not easy to lose. 6. Take out and enter auto