Timer Larger LED Digital Wall Clock w Remote Training HIIT Crossfit Fitness Interval Best for Gym/Boxing/Running/Kettlebells Cardio and Tabatha Workouts/Modern Design Home Decor 1. Wall Timer Functions (Modes) (1) Alternate timing for training and rest. F stands for training time, C stands for rest (2) Count up (oo:00 to 99:59)/ Display Format - [UP MM:SS] (3) Countdown (99:59 to 00:00)/ Display Format - [dn MM:SS] (4) Stopwatch - (00:00:00 to 99:59:00) Display Format - [MM:SS:(1/10s)(1/100s)] 2.Tabata/Intervals - Programmable Work to Rest Intervals.Display Format [F1 MM:SS & C1 MM:SS] where F = Work Period, C = Rest Period.When programming, clock will show F# (F and a number pertaining to the work interval or round, i.e. F1 = 1st round of work, F2 = 2nd round of work, etc.) during the training period, then once work interval is completed C# (C and number pertaining to the rest interval or round) will show for the rest period/interval 3. For instance: If you program 5 rounds of work and rest, then F1-F5 will show during your work interval and C1-C5 will show during your rest periods. 4. Save up to 10 (0-9) Preset workout times i.e. Preset 1 - Countdown 20:00; Preset 2 - Count Up to 15:00, etc 5. When each timer is started the clockstarts a 10 second countdown and a beep on 3, 2, 1, Go!