Features: XL Display 3/8" digits. 2 button operations- easy to use. 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. Pacer variable pacing tone. Side-Mount Belt Clip (snap on bike/exercise machine mount). Includes Chest Strap.