X10 Headphones Smart Watch 1.39 inch Waterproof Bracelet, Support Bluetooth Call / NFC / Heart Rate(Silver)

1. Bluetooth version: Cell phone bluetooth 5.0, Data storage bluetooth 4.02. Battery capacity of charging bin: 240mAh polymer battery3. Headphone battery capacity: 25mAh polymer battery4. Charging box function:The main body can charge the earphone for 2-3 cycles time5. Life time:8-12 days6. Music time: 3.5 hours7. Charging method: Magnetic charge8. Charging time: 1-2 hours9. Main chip: 8762D10. TWS chip: 8926B211. Heart rate chip: HX360512. Screen: 1.39 inch13. Resolution: 360×36014. Waterproof and dustproof: IP6715. Memory: 192KB RAM+1024KB ROM+128MB UI-Flash16. Control mode: Touch display17. Vibration: Real- time vibr ation reminder18. Main shell material: Glass lens + zinc aluminum alloy19. Compatible systems: Android 4.4 and above; ios 8.0 and above20. APP: FitCloudPro21. Package list: Charging line, instruction manual, complete machineFunction Parameters:1. Features: Bluetooth call, full touch, heart rate, shake and take photos, call reminder / rejection, information storage, Multi Sport mode,weather, NFC2. Major function: