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
