6-digit Digital Interval Timers are also great because they offer a variety of functions. Some may be used as a stopwatch as well as a countdown timer. Others aren't as versatile, but they are designed to be used by several people at the same time. There are modes that can be set to beep or vibrate when it's time to switch exercises. Others will beep when it's time to start or stop your set. Some gym timers can even beep throughout your whole workout. These are great for visually impaired people. There's also a variety of designs available. The old-school round ones are great for people who like to have something simple and easy to read. Others are more modern, with digital displays and patterns. FEATURES aluminium casing 12/24H Clock Training time in seconds Rest period Timer Remote Control Start/Stop Countdown/Count up Stopwatch mode Save times and Data Comes with instructions