1.Working Frequency: 2,4Ghz
2.Material: ABS
3. Waterproof level: IPX45
4. Display area: 4.2inch (diagonal)
5.Technology: E-paper and dot -matrix display.
6.Product size:105*99*15mm
7.Weight:112g
8. Visual angle:175°
9. Working temperature: 0~30 ℃
10.Language: no limit
11.Battery Life: CR2450x4(work life >5years),it can be replaced
12.Performance:Zero power consumption to keep the price information.
13.Display Color:black&white
14.Resolution:400x300
15.Support update online
