Sonic Electric Toothbrush USB Rechargeable Portable Tooth Brush for Dental Clean Electronic Teeth Brush for Travel and Home Usage Most important features: Profeional family dentist to improve various oral problems:> Removes up to 7x more plaque vs. a manual toothbrush> 30s + 2mins Smart Timer. Help scientific brushing habit.Good looking yet small> Weight is only 50.5g.> Convenient to use at home, office or traveling.Small yet powerful.> Max 43,000 times/min. High frequency vibration motor:> Approximately 45 days duration. Suitable for TRAVEL use.Strong yet Sensitive.> Dupont soft bristles, round bristle top, high density bristles with W type interface.> IPX7 full body waterproof level for direct washingSensitive yet flexible: High-Efficiency Cleaning 3 Mode. Family dentist to improve various oral problem Removes up to 7x more plaque vs. a manual toothbrush. Help scientific brushing habit 30s + 2mins Smart Timer. In-handle timer pulses every 30 seconds to let you know when to switch areas of the mouth, 2 minutes end brushing reminder to develop a brushing habit recommended by a dentist. Good looking yet small Weight is only 50.5g. Easy to hold and easy to carry: Convenient to use at home, office or traveling. Higher cleanning performance High frequency vibration motor: max 43,000 times/min Longer battery lifetime Approximately 45 days duration (Twice a day, 2 minutes each time). Suitable for TRAVEL use. High quality brush Dupont soft bristles, round bristle top, high density bristles with W type interface. Premium high-density bristles with gentle care for teeth. Keep you and your family safe IPX7 full body waterproof level for direct washing. High-efficiency cleaning mode Strong mode: Whiten-For Removing surface stainsGentle mode: Clean-For Daily Clean.Pulse mode: Maage-For Gently Maage Electric toothbrush use step Step 1: Put the toothbrush head on the shaft as shown between toothbrush head and the end of the handle.Step 2: Rinse the toothbrush head and squeeze appropriate amount of toothpaste on it.Step 3: Choose your mode.Step 4: Place the bristles on the teeth at a small angel to the gums.Step 5: Apply a little preure to move the toothbrush head back and forth between the teeth slowly and gently.Step 6: Rinse it with water on the toothbrush head together with the handle. Tap the toothbrush head to make sure there is no food residue in the bristle. Tips: > If you have had oral surgery in the last two months, consult your doctor before using it.> This product is not suitable for children, infants and people who does not know how to operate unle they are supervised or instructed by their guardian in the use of this product.> Do not use exceive force when moving toothbrush head back and forth between the teeth.> Do not plug in or pull off the power plug with wet hands. Package include