Sonicare technology gently pulses water between your teeth, for a month's worth of manual brushing in just 2 minutes. The QuadPacer lets you know when you've spent the optimal amount of time on each section of your mouth while the SmarTimer signals when your 2 minutes is up. The pressure sensor flashes red to remind you to ease off, helping to prevent gum recession, while the 2 intensity settings ensure a comfortable clean that’s right for you. Going electric might feel like a big step, but with this brush you’re in safe hands. Its slim ergonomic design and familiar-shaped head gives you everything you need for an effective clean. The kit includes 1 Philips Sonicare 4100 electric toothbrush, 1 Optimal Plaque Control (C2) brush head and 1 USB charger (wall adaptor not included).