Electric Sonic Dental Scaler Teeth Whitening With HD Camera Teeth Calculus Tartar Remover Tools Cleaner Tooth Stain Oral Care Product parameter Product model: T12PRO Working frequency: 2.4GHZ Working environment temperature: -10 to 50C Battery: 1200MAH Battery life: 180 minutes Charging time: about 2 hours Input parameters: 5V===0.5A Working voltage: 5V Pixel: 5 million Camera WIFI connection steps: 1. Scan the QR code on the user manual to download the "cooleer" APP, the password is 12345678 2. Turn on the device before connecting to WIFI, find the wifi connection of "cooleer", and then open the "cooleer" APP on the phone. Attentions: 1.Long press to turn on/off the device 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.Please make sure accessory head was installed on device during turning on or charging. 4.You need to unplug the charging cable before turn it on and use 5.The first charging time takes at least 3 hours 6.Only Visual Version support APP real time .APP support Android and IOS,can't windows. Features: Efficient: High frequency vibration brings excellent tartar and stain removal effect. Multi-purpose: 2 cleaning heads and 3 modes to solve various problems. Reliable: stainless steel working tip, waterproof body, safe to use Environmental protection: built-in 1200 mAh rechargeable battery, durable battery life. Comfortable: Lightweight body, silicone handle, comfortable to hold. Upgrade function: built-in 5 million high-definition pixel camera, clear observation of the oral cavity.