COUNTDOWN MODE: This stopwatch with 3 rows 30 memory works perfectly in stopwatch mode and countdown timer mode, it can record up to 10 hours with an astonishing accuracy of 1/100 seconds. It also has a sleek design and fits nicely in your hand.SPLIT MODE: The split mode comes handy in your training sessions allowing you to record in both the Split and Lap time with the ability to recall 30 memories for multiple events.COUNT MODE: The feature allows you to use it to count number as a electronic tally counter which can count from 0 to 9999, or from 9999 to 0.TIME MODE: The stopwatch displays clockcalendar with alarm function; With a battery that uses power so efficiently, typically lasting two years this stopwatch lives up to its expectations.