Make brushing your teeth easier, smarter, and more effective. Fairywill 507 Electric Toothbrush provides dynamic cleaning with its sonic technology of up to 40,000 micro brushes per minute. A 2-minute smart timer with interval pausing reminds you every 30 seconds to shift your brushing area to encourage good brushing habits. Fairywill 507 features medium-soft bristles to avoid abrasion to teeth, enamel, and gums. With 5 cleaning modes, you can adjust the intensity to suit your brushing needs. Choose from White, Clean, Sensitive, Polish, and Massage modes. The sonic handle comes with 4 brush heads so you can replace it every quarter. You'll also get a solid case to make carrying your toothbrush easier.