JINRI Whitening Battery Electric Toothbrush, 3 Replacement Brush Heads Battery,Ultra Sonic Motor, Smart LED Pressure Sensor,Deep Clean (L) 1. Before turning the toothbrush on, place the bristles of the brush head on your gumline at a 45-degree angle. 2. Hold the handle with a light grip, turn the toothbrush on, and gently move the bristles in a small circular motion so the longer bristles reach between your teeth. After a few seconds, glide the bristles to the next section. Continue this routine throughout your 2-minute brushing cycle. Features Powerful Sonic Cleaning - New Upgraded Electric Toothbrush with the latest sonic technology along the gum line for exceptional clean and remove up 100% plaques, whitening your teeth and improving your oral health in two weeks better than a manual toothbrush. 5 High Performance Brushing Modes Clean, White, Polish, Massage and Sensitive to suit different conditions of teeth of gums, so you can choose different modes according to your preferences and dentist's recommendations. Smart Vibrating Notification TimerBuilt in smart timer control, 30 seconds interval reminding you to move to the next quadrant of your mouth, and totally in 2 minutes(4 quadrants), which is highly recommended by professional dentists, as a correct brushing way. 3 Replacement brush heads Comes with 3 replacement brush heads to avoid order new replacement brush heads frequently. Each brush head lasts 3 months so 3 will last for about 9 months. What You Get1 Sonic electric toothbrush, 3 brush heads, Instruction manual