The Countdown Timer counts down from whatever time you program. Quiet vibrator tells you when the time is up. Works underwater. Endless uses: exercise, physical therapy, stretching, swimming, sports, time your laundry, baking cookies, or timeout for children. It has a feature where it can measure how many sets you have performed so far.

• Silent vibration signal
• Count Down timer
• Counts Up reps
• Water resistant to 50 meters