Rechargeable Teeth Calculus Remover Can We Brush Our Teeth Calculus Away? dental calculus is made of hardened plaque and the cause of nearly all gum diseases. A toothbrush is designed to clean only visible teeth surfaces but not Teeth calculus. Almost everyone has Teeth calculus. Scraping is the most effective way to solve it. Why Do You Need an iFanze Teeth Calculus Remover？ 1. Up to 12,000 vibrations per minute for an outstanding teeth cleaning effect 2. Effectively remove dental plaque/calculus/tartar/tobacco stains/coffee stains, etc 3. Keep oral cavity clean and bring fresh breath everyday 4. Made of alloy steel and food-grade silicone for safe use 5. Less money and time expenses by comparing with teeth washing in clinics 6. IPX6 waterproof makes rinse convenient How to Use? 1. Press the Power Button to turn on the device. Choose suitable gear by pressing Up and Down buttons. 2. Looking in a mirror, apply the metal head to the treating part. Slightly press to remove any dental plaque or tartar. 3. The device pauses 1 sec every 30 sec and shuts down automatically after 3 minutes. Gargle with water and clean the device. Repeat previous steps according to your need. Product Specifications: Rated Voltage: 3.7V Rated Current: 200mA Battery Capacity 300mAh Product Size: 183.6*30*22.3mm Product Weight: 53.6g Charging Voltage: 5V Motor Noise: ≤60dB What's in the Box? 1 * iFanze Rechargeable Dental Calculus Remover 5 * Replaceable Clean Heads 1 * Mouth Mirror 1 * Charging Cable 1 * User Manual