REMINDS YOUR CHILD WITH A CUTE melody: Simply set the interval timer alarm for 30, 60 or 90 MINS to remind your child that it's potty timer. WATER-RESISTANT WEARABLE POTTY TRAINIGN WATCH: Life waterproof, they can wash their hands or play with water with water resistant feature. LIGHTS AND MUSIC: LED Screen and 9 remind.Set 30 minutes/60 minutes/90minutes to remind kids go to potty. EASY TO USE AND RECHARGEABLE: Use USB charging function. MAKES TOILET TRAINING and ENGAGING : For toddlers and allows parents to remind kids regularly without losing of time. Suitable for 18 months and above. Size: 22.5*1.6*1.5 Color: Green Material: Silicone Package Contents: 1 * Silicone Strap 1 * -USB Charging Cable 1 * Chinese and English manual,with Blister packaging Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.