: Combined with preset modes and cumstomizable modes: Tabata, FGB, Countdown, Count-up, EMOM(loop countdown), Stopwatch, and 3 custom interval timing modes(P1-P3). Fit your crossfit and different training needs. : The volume of the timer is adjustable, and it can also be turned off. Also, it has an ending alert when a workout is finished. : The built-in battery can power up to 40 hours at a full charge, making it possible to take and use anywhere. Also, there's a low battery icon on the screen to remind you that it's time to charge. : The screen size is 2.05*6.65 in. Featured with 4-level adjustable brightness, with a crystal-clear LED screen and bright digits, easy to read across garage, gym, or home. & : Built-in remote for ready-to use, and you don't have to worry about finding/losing the remote anymore. Made for count up, countdown, EMOM, custom intervals setting, and you can set the interval workout time/rest time/round with ease. Plus, the built-in magnet spine makes it possible to mount to any metal gym equipment.