Please be careful when replacing the head. We will replace the new head for you if you received it broken.Why do you need a tartar remover?Advanced tartar removal technologyEffectively remove tartar, tartar, plaque, coffee stain, smoke stain and so on .IPX6 waterproof for your daily use.5 adjustable modes, suitable for different needs.Maintain good oral health and bring fresh breath every day.Save your money and time compared to washing teeth in a dental clinic.Small in shape and convenient to carry, beautiful and generous.Package Contents1 Electric Tooth Cleaner1 Cleaning Head, 2 Toothbrush Head1 one Mouth mirror1 a charging cable1 a user manualWarnings1.This device is intended for adults only. Keep it away from children to avoid injury.2.Do not put the device in water. 3.The device has a built-in rechargeable battery. Don't throw it in the fire. Do not charge, use or place in high temperature environment. 4.Do not touch the tip while the device is on. 5.Do not use damaged devices