1. Bluetooth version: 5.3
2. Transmission range: about 10 meters
3. Speaker:φ16mm
4. Battery:earphone: 50mAh*2,charging case: 320mAh
6. Charging voltage: 5V/0.5A
7. Charging time:about 1H
8. Play time: about 6H
9.Weight: about 80.4g 1.Bluetooth 5.3, more stable connection
10.Comfortable fir the natural curve of your ear
11.Large 16 mm drivers for powerful bass performance
12.Long battery life up to 30 hrs playtime
13.Slim design for easy to take anywhere
14.IPX5