1. Bluetooth version: digital display 5.3
2. Transmission distance: about 15m (no obstacles)
3. Battery capacity: 100mAh
4. Speaker: 8x10 copper ring
5. Range: about 20h (50% volume)
6. Charging time: about 2h
7. Features: digital display power, Chinese and English switch, caller ID, three-way call, TWS binaural function (requires 2 headphones), voice assistant, los power display, WeChat voice, music playback, etc.

Features:
1. Skin-friendly silicone elbow design, can bend 360 degrees, comfortable to wear
2. Directional sound transmission technology, effective prevention of sound leakage, protection of privacy
3. 13mm dynamic speaker, full-range graphene diaphragm sound unit, balanced full-range listening experience
4. With digital display power, easy to view
5. Can be worn in both left and right ears, can be used individually or binaurally (with TWS function)
6. IPX5 level waterproof and sweat-proof
7. Double audio decoding, no sense of delay
8. One key intelligent control, easy to operate