1. Weight: 36 g
2. Material: ABS
3. Dimensions: 9.5 x 4.7 x 1.6 cm
4. Additional function: LED light
5. Wearing method: handheld
6. Battery capacity: 350mAh
7. Power supply mode: built-in lithium battery
8. Charging time: 1-2 hours
9. Power supply mode: USB charging
10. Working time: 8-10 hours
11. Scope of application: currency check, compass, hotels, hotels, travel, etc.