1. Bluetooth: V5.0

2.Chip: JIELI

3.Sensitivity: -90dbm

4.Battery: 450mAH for charging box

5.Charging time: about 30 mins for earphones. 

    When full charged, the charging box can support 8 times for  earphone.

6.Play time: 12 hours 

7.Talk time: 20 hours 

8.Standby: 100 hours 

9.Weight: 4g for single earphone