1. In-ear silicone earplugs, good sound insulation effect, three sizes are available
2. Active noise reduction, IPX5 waterproof, light sensor in-ear detection, automatic matching after boot
3. Charging time: 4-6 hours
4. Battery life with the charging box: 72 hours
5. Transmission range: 15 meters
6. Function: power display, voice control, call function, support music, multi-point connection
7. Bluetooth protocol: 5.0
8. Channel: stereo
9. Usage: hanging ear type
10. Packing size: 7x7x3cm