Features: Dual Display of heart rate, lap# & exercise time. TZ programmable in single beats with audible & visual alarms. EZ-Set Target ZonePat.Pend. Simply enter your age. Target-Trac target zone goal alarm and graphic indicator. Smart Stopwatch real time memory, quickstart & pause. 99 Lap Counter with 10 second display. Memory Recall (8 laps, Avg HR, Time in TZ, Total Exercise Time & Calories). Watch/Calendar 12/24hr. time & date with daily alarm. Water Resistant to 30M & Shock Resistant. 1 Year Hassle-Free Warranty. Programmable interval timer. Smart Calories Calculates w/age, gender, HR & activity. "Nite-Site" Electroluminescent night light. Available with detachable display with snap-on bike mount.