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The GYMBOSS is like having your own personal trainer. It's ideal for any kind of interval training to maximize fat loss. I never go a day without using this for my clients or myself. This GymBoss has:

• One or two different time intervals from 2 seconds to 100 minutes
• Auto mode keeps repeating through intervals
• Set up to 99 rounds
• Manual mode acts as a countdown timer
• Alarm by beep, vibration, or both
• Alarm duration of 1, 5, or 10 seconds
• Size of a small pager
• Belt cip
• Water and shock resistant