Product Details: Waterproof: Yes Age: 3 years and older Battery: 1 AAA battery (sold separately) Contents: 1 Electric Toothbrush (operates on 1 AAA battery, battery not included) 2 Replacement Heads 1 Instruction Manual Please Note: How to switch modes? Press the power button continuously within 5 seconds to switch between light and vibration. For babies and young children who cannot brush their teeth on their own, a parent or adult must always supervise. To prevent accidental ingestion, insert the battery correctly. Brush gently, using the same technique as a manual toothbrush. If this is your child's first time using the toothbrush, they may feel ticklish, but this is a temporary reaction that should subside within two weeks. Four Modes, Switch by pressing the button within 5 seconds: Mode 1: White Light + Vibration Mode 2: Color Light + Vibration Mode 3: Vibration Only Mode 4: White Light (for checking oral condition) These 4 modes are suitable for different oral needs. Make Brushing Fun: The cute design with LED lights is perfect for children's enjoyable brushing time. Soft bristles and high-quality silicone brush heads elevate your child's brushing experience. Establish Proper Brushing Habits: The toothbrush features a 2-minute smart timer and a 30-second vibration notification, which is very helpful in practicing the dentist-recommended method of brushing each quadrant of the mouth in sequence. Designed for Children: The sonic technology and the toothbrush head are designed with features that gently brush teeth and gums.