1. Bluetooth version: V5.3 2. Frequency range: 2.4-2.48GHZ 3. Headphone battery capacity: 28mAh 4. Charging box battery capacity: 250mAh 5. Charging time: 2h 6. Charging time: 1h 7. Working hours: 4-5h 8. Working range: 10m 9. Using low power consumption, the connection is faster and more stable. 10. High-resolution sound quality and sound insulation technology protect your privacy 11. Ergonomic ear clip design, does not go into the ear, is comfortable to wear, and is more stable during movement. 12. Flexible material, skin-friendly, no ear damage, automatic rebound 13. Single or dual independent chips, use and switch freely 14. Double noise reduction, automatically identify human voices and noise, improve clarity 15. Adopt pulse 4.0 directional sound transmission and low-latency function to achieve audio and video synchronization 16. LED charging cabin, intelligent digital display of battery power
