1. 3-key operation, simple and convenient
2. Waterproof design, rubber ring seal design, can also be used in rainy days
3. ABS shell, anti-drop and anti-corrosion, comfortable hand feeling
4. Reinforced with 4 internal brackets, anti-drop and shock-proof
5. The numbers are clear and easy to read
6. Function: single row 2 memory, clock display, calendar display, stopwatch, alarm clock, 1/100 timing
7. Power supply: contains an AG13 button battery
8. Material: ABS
9. Size: about 7.2 x 6.2cm
10. Weight: about 86g