1. 3-key operation, simple and convenient
2. Life waterproof design, can also be used in rainy days
3. ABS plastic shell, wear-resistant, drop-resistant, shock-resistant and anti-skid
4. Good size and comfortable grip
5. The numbers are clear and easy to read
6. Function: double row display, 10 memory, clock display, calendar display, countdown, 4 groups of alarm clocks, metronome, 1/100 timing
7. Power supply: contains a 2032 button battery
8. Material: ABS
9. Size: about 7.9 x 6.2 x 2cm
10. Weight: about 85g
