Tabata is a form of high intensity interval training (HIIT). By default one Tabata workout comprises a 4 minute workout, divided into 8 rounds. Each round comprises a 20 second work period of physical exercise followed by a 10 second rest. Adjustable Tabata times (0-9999 seconds for each stage). Adjust number of rounds (0 to 500). Round progress is indicated by the smaller circles around the timer ring.• Prepare and cool down stages. • Rename Tabata and any of its first 30 rounds.• Modify timings and names for 10 different Tabatas.• Choose form various sound and vibrate options for each stage.• Pre-beep or vibrate countdown to next stage.