This is a very cool and multifunctional Clock designed for fitness training. No matter for fitness center or home fitness, this multifunctional clock can work in a very friendly way to time your training. You will need one for your personal training!The clock applies high quality blue and red color high quality LED Seven Segment with high accurate time chip. Up to 10 years long time span, you will have a very cost effective once you have such a clock. The accurate time chip only has an about 2-3 minutes tolerance in one entire year! The clock also comes with a buzzer, it will work during preparation for countdown/up function to mention you that the count/up is going to start. You can set any time for the training time and rest time. And you can set up to 9 groups training time(F1-F9) and 9 groups rest time(C1-C9) and they display will alternative way. The clock is controlled and edit by IR remote control, the efficient control distance is 10 meters. This is very helpful especially when the clock is mounted out of reach. The very simple operation for the remote control makes you can master it just in several minutes! Features:Digit High: 5"/13cm; Time format: 12 and 24hour format