Function description: 1. Normal walking time, time displays. 2. Time and time are independently adjustable 3. Time and second correction function. 4. The speed of the clock can be adjusted slightly. The speed from 0 to 9 can be adjusted. 5. Two-way alarm clock, and can set the alarm clock switch independently. 6. Hourly prompt function, which can be turned off or on. 7. Equipped with battery interface, it can turn off the power when walking.The battery only needs to be greater than 3V to ensure power off.Use two AA batteries,three AA batteries,or a cell phone battery 8. Countdown function, can achieve the countdown within 99 minutes, countdown to the end of the alarm. 9. Stopwatch function, can realize stopwatch function, can pause stopwatch, reset stopwatch. 10. Can achieve the counter function, can record the number of keystrokes.You can also record the number of external pulses.

Package includes: 1 x 4-Digit Digital Clock Kits