It will do one interval and repeat or two different intervals, IE 20 seconds followed by 10 seconds, which is of course a Tabata interval. It can also be set to buzz repeatedly at any fixed interval. It also counts your rounds. When you set it up for one-minute intervals, for a workout like Fight Gone Bad, it buzzes every 30sec, but it only counts rounds on the minute, sort of a half-way warning. Cool product. Mine was $11.99 at the BX.
