Coaches, athletes and timers will love the incredible functionality of the AX PRO Memory Series AX725 professional stopwatch from Accusplit®. It features a twin left/right button operating system, as well as a dual LCD display that shows both lap time and cumulative time. The durable case is water and shock resistant. Twin left/right button operation. Dual LCD display. Fail-safe reset. Durable, water- and shock-resistant case. Instructions, lanyard and battery are included. 5-year manufacturer's dual, no-proof and proof-of-purchase warranty. Model: AX725. Made in China. Battery Life: 5 years. Operating System: AOS 4.5. Lap/Cumulative Splits: Both. Additional Functions: Split counter (up to 99); event start/stop; last in, first out. Timing Range: 10 hours. Timing Interval: 1/100 seconds. LC Display: Dual.