1. Working Frequency: 2.4Ghz
2. Material: ABS
3. Waterproof level: IPX45
4. Display area: 2.1 inch (diagonal)
5. Technology: E-paper and dot -matrix display.
6. Product size:70x35x13mm
7. Weight :37g
8. Visual angle:175°
9. Working temperature: 0~30 °C
10. Language: no limit
11. Battery Life: CR2450X2 (work life >5 years), it can be replaced
12. Performance: Zero power consumption to keep the price information.
13. Display Color:black&white
14. Resolution:212x104
15. Support update online
