About 3.5H after earphone single full charged for normal using.Semi-In -ear design, metal for earphone with magnetic ,anti-sliding.Hifi stereo sound with clear voice calling quality.Super long using time :more than 9H.Fit and comfortable to wear.Best choice for sports. 
Suggested Retail Price：US$27.69

Main specifications

Chipset:Airoha V5.0

Wireless range:15m

Talking time:5H

Play time:5H

Standby time:560H

Charging time:<2h< span="">

Output power:3mW

Speakers size:Φ13mm

Rechargeable battery:120mAh

Charging current:90mA