1. Bluetooth version: 5.0 2. Material: ABS+PC 3. Battery capacity: earphone 30mAh, charging compartment 300mAh 4. Charging time: about 1.5 hours 5. Standby time: 100 hours 6. Talk time: 4 hours 7. Music time: 4 hours 8. Bluetooth distance: 10 meters 9. Support APTX lossless sound quality 10. Master-slave switching, can be used in one ear 11. Low power consumption, support long time use 12. Intelligent control, easy to use 13. Ergonomic design, comfortable to wear and firm
