1. The keys are sensitive and not stuck, easy to operate, ABS material, wear-resistant and durable
2. 3 rows of display, high-definition large screen, with luminous, easy to use when the light is dark
3. Life waterproof, anti-seismic design
4. Convenient battery cover, easy to open to replace the battery
5. Function: stopwatch, clock, date, alarm clock, metronome, can be turned off, can be mute
6. Power supply: contains a CR2032 button battery
7. Material: ABS
8. Size: overall about 7.5x6.2x2.1cm, display about 3.5x2.35cm
9. Weight: about 70 grams