1. Bluetooth version: 5.0
2. Appearance material: ABS
3. Battery type: polymer lithium battery
4. Headphone battery capacity: 40mAh
5. Charging case battery capacity: 260mAh
6. Charging method: charging in the charging box, USB jack, magnetic charging for headphones
7. Headphone charging time: about 40 minutes
8. Charging box charging time: about 2 hours
9. Headphone life: about 2 hours
10. Charging box can be recharged: about 2 times
11. Magnetic charging, convenient and fast
12. Multi-function keys for easy operation
13. Waterproof level: IP4
14. Compatible system: IOS / ANDROID / WINDOWS
15. Product size: headphone: 37x17x19mm; charging case: 47x47x26mm