Body material: ABS How it works: Ultrasonic Waterproof performance: IPX7 waterproof Power supply voltage: 5V/1A Charging interface: USB Charging time: 2 hours Rated power: 0.8w Frequency: 37khz+/-3khz Rated time: 10 minutes Control method: button Working mode: 3 modes Weight: 250g Product size: 189*24.5*25mm Product configuration: 1*machine+2*stainless steel cleaning head+1*dental mirror+1*tooth cleaning powder+USB data cableDental ultrasonic scaler calculus remover electric sonic plaque cleaner to remove calculus 1. The computer presets 10 minutes automatic shutdown function to prevent overheating 2. The device works when you touch something hard like your teeth, it doesn't work if you use it 3. Equipped with powerful LED lights to help illuminate every corner of the mouth, making your teeth cleaning more comfortable and efficient.Products from Chunchuan's store