GymBoss minimax

A discreet and sleek tool, this vibrating interval timer can help your child stay on target with gentle vibrations as a reminder, timed to your specifications. Best of all, the GymBoss Minimax will blend right in! Up to 25 different intervals Repeat intervals up to 99 times Repeat groups up to 99 times Repeat entire sequence up to 99 times Save up to 20 programs Alarm by beep, vibration or both Alarm duration of 1, 2, 5, 9 seconds Stopwatch function Clock function Secure removable Belt clip Compact Size (1 ¾ x 2 ¼ x ½ inches) Water, sweat and shock resistant AAA battery required 1 year warranty Full instruction on use can be found here.