that guide you through the four quadrants

with multiple attachment brush heads with compact, round design and Indicator bristles that reminds you to replace your brush head. You can easily track your brushing time with a two-minute timer that guide you through the four quadrants of the mouth. It also features a pressure sensor that stops pulsation to notify you when youre brushing too hard.Deep Sweep 5000 Features:SmartGuide LCD Display 2-Minute Timer