AX Pro 16 Memory dual split stopwatch. Used in the NFL, MLB, and elite college athletics.AX725 AX Pro Memory Series Stopwatches are professional timing devices with significantly increased functionality going beyond our tremendously successful Classic X (WOS) Series. The AX725 has Exclusive "AOS" 4.5 Operating System with Twin Left-Right button operation feature, designed to give coaches, athletes, and timers the most precise timing available. All AX Pro Series Stopwatches are cased in Accusplit's distinctive, ergonomic designed "X" Extra Performance Case.Features:AOS 4.5 Operating SystemACCUSPLIT Exclusive "X" Extra Performance CaseMillion Cycle Switches for clean, precise reliability16 Dual Split MemoryDual Split (Lap and CUM)Twin Button Operation1 Button Rapid Split and ResetSplit Counter1,2 Fast FinishTiming Range 10 hoursEvent Timing (Start/Stop not Time Out)Dual liquid crystal display5 year battery life (CR2032)Water Resistant 30m/100ftShock ResistantFail-Safe Reset5 Year Dual, No Proof of and Proof of Purchase WarrantyPackages include AX PRO Memory Series Stopwatch, Lanyard, Battery, and Instructions