1. BT v5.3. Chip: JL AC7006F4
2. Battery capacity: 90mAh, charging time is about 1.5 hours.
3. Use time: 8 hours. Standby time: 120 hours.
4. Sizes: 121*104*35mm. Weight: 13g.
5. Air conduction BT headset.
6. Supports Chinese and English prompts: double-click the multi-function key in unpaired mode.