Portable USB Crossfit Interval Timer Our crossfit timers work perfectly for Home gyms, club fitness gyms, weight rooms, Rec Centers, Health Clubs, Schools, etc. Helps you tracking your gym sessions and timing rest time. Gym Timer Crossfit with Remote There are two shortcut keys: Preset work time( F ) 20 seconds，Intervals ( C) 10 seconds ; Repeat 8 times. (Train time F1 00:20 interval C1 00:10 to F8 00:20 interval C8 00:10 then repeat total 8 times) FGB Button： FGB1 : Preset work time /5 min; intervals/1 min; Repeat/5 times FGB2 : Preset work time /5 min; intervals/1 min; Repeat/3times Our Gym Exercise Timer has 4 different functions. 12/24hour clock, countdown or countup timing, Interval timer and stopwatch. Custom Interval Timer You can use the custom timer to build your workout by the remote controller. Programmable interval training with any work/rest times up to 99 cycles. Count Up Clock Count-up: Count up from 00:00 to 99:59. Create a desire time and press start key to start from desire time to 99:59. Timer will be beep when reaches to 99:59. Count Down Clock Countdown: Countdown from 99:59 to 00:00; Create a desire time and press start key to start from desire time to zero. Timer will be beep when reaches to 00:00. Stopwatch Clock Stopwatch maximum time is 99 minutes 59 seconds 99 hundredths. Press start key begin to count up from 00 00:00 to 99 59:99 12/24 Hour Real Time 12/24 hours time: Display both 12 hours and 24 hours format time. TABATA Preset work time( F ) 20 seconds，Intervals ( C) 10 seconds ; Repeat 8 times. USB Power Plug Come with USB cable,Support for outdoor use Portable Size Dimension size: 11'' W x 3.6'' H x 1.2'' D ,1.5 inch LED high Mounting:Wall-mount, Hang ,Stand on desk 1x LED Interval Timer; 1x Remote(2x AAA battery not included) 1x USB cable; 1x screw set; 1x manual