Interval Timer Stopwatch Wall Clock w/ IR Remote Control(14"x4"x1.5") This crossfit timer has multiple functions -- interval timing(F & C training time & rest time), wall clock(H1/H2 hh:mm),Stopwatch, countdown(dn MM:SS),count up(up MM:SS) stopwatch count from 00 00:00 to 99 59:59 in mints secs and hundreds of secs; count up from 00:00 to 99:59 in mints secs and can start at any time between 00:00 and 99:59; countdown from 99:59 to 00:00 in mints secs and can start a count down at any time between 99:59 and 00:00. Save up to 10 preset workout intervals, and can assign your preferences to each shortcut key. Say you want to assign your tabata training to shortcut key P1, next time you can just press the number 1, you can quick access your tabata training. IR remote control, can control the timer within 5 meters. When you use it, try to point the remote to the IR signal receiver so that the timer can respond to remote smoothly. The closer to the timer, the smooth the remote can be to the timer. 2xAAA battery to remote control are NOT included because courier doesn't allow us to put battery in the package when we ship the products from China to Amazon Inventory in United States.