2 in 1TWS bluetooth headset bracelet 12.9mm thin, Health Monitoring & Motion Tracking

Main Function：1.69"" ultra-thin large color screen, IP67 waterproof grade,2 in 1TWS bluetooth headset bracelet,12.9mm thin,Health Monitoring & Motion Tracking
Strap size：22mm
Strap material：Silicone
Watch material：Zinc-aluminum alloy
Battery capacity：250MAH
Standby time:8-12 days,
music playback 3.5 hours,
The main body can charge the opposite ear for 2-3 cycles
System requirements：Android 4.4 and above,IOS 8.0 and above