This Ultrak 490L Memory Stopwatch has plenty of great features such as an LED backlight, 100 dual split recallable memory, large 3-row display, stroke/frequency, time/calendar, and more! It is also water resistant and durable for long-lasting use. Features: LED backlight. 100 dual split recallable memory. Bottom row displays running event time or running lap time. Memory recall during operation. Take splits during recall mode. Large 3-row display. Measures up to 10 hours. Stroke/frequency. Time and calendar. Water resistant. Lithium battery.