Feature: Digital Chronograph Sports Stopwatch Counter with StrapSports Digital Stopwatch Chronograph Timer Please note that we are selling factory direct products. All our products are 100% brand new without retail packaging. Professional Sports Chronograph Digital timer stopwatch show hour, minute, second, AM/PM indicator, month, data, and day of the week You can select 12 or 24 hour user with Chronograph Stopwatches 1/100 second Chronograph up to 23 hours, 59 minutes , 59 seconds Timer Stopwatches alarm with 4 minutes snooze Hourly chime Powered by one AG13 button cell (Included). How to use: Stopwatch setting and use: Under normal time display, press the MODE button once, you will see the stopwatch state, press the START button (right button) again to start timing, you need to stop and press the START button again, and continue to press the START button again. To reset the time to zero, when the stopwatch is stopped, press the SPLIT key (left key) to reset the time to zero. Alarm time setting: Under normal time display, press the MODE button twice, you will see that it enters the alarm time setting state, then press the START button (right button) continuously to start adjusting, press the SPLIT button (left button), then will be transferred to the grading. Time setting: Under normal time display, press the MODE button three times, you will see the seconds flashing, press the SPLIT button (left button), you will see the score flashing, then press the START button (right button) to adjust the score OK, press the SPLIT button (left button) and you will see the hours flashing, then press the START button (right button) to adjust the hours, press the SPLIT button (left button) and you will see the days flashing, then press Press the START button (right button) to adjust the number of days, and do all the operations in this way. After the months and weeks are adjusted, press the MODE button to exit. Specifications: Material: ABS Powered by: Button battery Size: 8.5*6.5*2CM Color:Black Package Content: 1x Multi-Function Digital Sports Timer