1. Bluetooth version: 5.2
2. Transmission distance: about 10m
3. Playing time: 10-12h
4. Standby time: 280 days (off state)
5. Driver unit: 16mm
6. Frequency response: 20Hz-20KHz
7. Charging box battery capacity: 320mAh
8. Headphone battery capacity: 110mAh
9. Bluetooth chip: JL6973D4
10. Input: DC5V/1A
11. Charging time: about 2h
12. Skin-friendly silicone and memory metal, fit the ear shape, more comfortable to wear
13. Binaural noise reduction, support for high-definition calls
14. Aluminum alloy ultra-thin charging compartment, easy to carry
15. 16mm super loudspeaker, restore CD-level sound quality