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
