The IET-31 Sonic Electric Brush is a rechargeable sonic toothbrush designed for deep and effective oral cleaning.It uses high-frequency sonic vibration technology (up to 40,000 vibrations per minute) to remove plaque more effectively than a manual toothbrush. It also features multiple brushing modes, a 2-minute smart timer with interval alerts, and an IPX7 waterproof design for safe use in wet environments.With a long battery life, Type-C fast charging, and replaceable brush heads, it is ideal for daily teeth cleaning, gum care, and improved oral hygiene at home or while traveling.