1. Adopt Bluetooth 4.2 technology strong signal stable transmission high-definition call.
2. Ergonomically crafted and comfortable to wear
3. Wireless Profile: A2DP1.3 HFP1.6 HSP1.2 AVRCP1.6 D11.3
4. Standby time:about 120 hours if one earbud on 70 hours if both earbuds on
5. Continuous working time: 2-3 hours
6. Bluetooth version: Dual-mode V4.2 ultra low-power consumption
7. Frequency: 2.4GHz
8. Bluetooth Distance: 10m
9. Earphone: Internal 45mAh rechargeable li-ion battery
10. Box battery: 400mAh
11. Product siz: 63*40*32mm
12. Product weight: 52g (including the charging box)