Attentions:1.If you want connect camera,need to download an app"cooleer"first!Then turn on the device,switch to a mode.Connect to WiFi: yanxi-2113-BFCF,type in paward(whih you can find in manual),back to app,click start!2.The device works when it touches a tough thing like teeth,if you use it on the skin,it will not work. there is no vibration of item body.3.The first charging time takes at least 5-6 hoursFeatures:1.The true ultrasonic tooth cleaning, resonates 2 million times per minute, accurately crushes calculus, efficiently cleans and whitens teeth, and does not damage teeth and gums.2.Multiple effects: Effectively improve the swollen gums, yellow and black teeth, tartar, bad breath, tooth decay, dental plaque and other dental problems.3.Three modes (mildermode/cleanmode/powerfulmode), one-key intelligent switching, meet the needs of different teeth cleaning, and meet the actual needs of different groups of people.4.Built-in four-axis directional gyroscope, the camera's angle of view remains unchanged when the body rotates, and 360 precise cleaning without dead ends, giving you a safe and comfortable cleaning experience.5.Visual dental cleaning: high-definition endoscope, camera equipped with macro proceing technology, built-in multiple sensors, so that dental problems are clear at a glance.6.Disinfection cabinet + storage box: automatic disinfection by blue light irradiation, effectively removes odors, and inhibits the propagation and regeneration of dental plaque.7.IPX7 waterproof: The whole body is waterproof, and the whole machine can be rinsed, which is convenient for cleaning the scaler after brushing.Specifications:Material: ABSColor: WhiteSize: 20.5*2.7*2.7cmWeight: 105gPacking size: 24.5*12*5cmCharging time: about 5~6 hoursUse time: about 2 hoursAuxiliary lighting: 6 blue lightsLens pixels: 300,000Network standard: IEEE 802.21b/g/nWorking environment temperature: -10-50 degrees CelsiusBest focal length: 2.1cmVibration frequency: 32-33KHZImage sensor: CMOSImage transmiion rate: 30fps