Timer Function - Simply set the programmable cycle in the timer to cycle every 1 minute, 5, 10, 15, 20, 30, 45, 60, 90, 120 minutes, or 180 minutes, and the automatic repeating vibration lets your child know it's time Went to the toilet. Multiple alarm clock settings - up to 15 individual vibrating alarm clocks, no need to turn on/off every day, silent strong vibration will not disturb others, perfect for potty training, going to the toilet, doing homework, taking medicine, drinking water reminder, getting up, etc. Discreet reminders to raise your alarm, make a daily plan, or pray throughout. TESTED FOR SAFETY - The improved vibrating watch is lightweight, made from a soft silicone wristband and is designed to fit those up to approximately 3 years of age. 4 to 7.1 wrist. Rechargeable and waterproof - lasts up to 40 days on a full charge, no need to worry about showering. EASY TO USE - Easily program on the band, no need to worry about resetting, it permanently stores all your alarm settings.