1. Product screen: 0.96 inch OLED screen
2. Resolution: 64*128
3. Working hours: 96 hours
4. Standby time: more than 20 days
5. Talk time: 4.5 hours
6. Charging time: 2 hours
7. Battery: 80 mAh
8. Storage: 256K
9. Bluetooth version: 4.1
10. Interface: USB charging (MOS tube charging; 5V 0.01A-0.8A)
11. Matching system: IOS&Android
12. Functions: call, call reminder, music, heart rate monitoring, calories, sedentary reminder, sleep monitoring, step counting, alarm clock, etc.
13. Bottom support specifications: length 249mm, width 21mm, height 13mm
14. Headphone specifications: length 48mm, width 18mm, height 13mm
