Nature Nerds set helps keep your pets’ teeth healthy and their breath fresh. High-frequency vibration technology up to 40 kHz effectively removes plaque, tartar, and stains, saving time and effort. Supports up to 120 minutes of operation and multiple charging options, while an intelligent protection system automatically shuts the device off when it touches gums or soft tissues. Five cleaning modes, low noise level, and a water-resistant body support comfortable daily use