. BT v5.1. Chip: JL AC6976D.
2. Battery capacity: 150mAh, charging for about 1 hour.
3. Talk/music time: 20 hours.
4. Standby time: 200 hours.
5. Sizes: 110*45*28mm. Weight: 12g.
6. Super battery life, both left and right ears can be worn.
7. Support Chinese and English prompts, double-click the multi-function button in the unpaired state.