Philips Rechargeable Sonic Toothbrush 2100 Series Light Blue blends a sleek, ergonomic silhouette with powerful sonic cleaning—up to 31,000 brush strokes per minute—that removes up to 3× more plaque than a manual toothbrush. The slim, lightweight design (≈ 23.4 cm long, 2.5 cm wide, 2.7 cm thick, and just 98 g with the head attached) makes it easy to handle and ideal for travel. Its battery delivers up to 14 days of use on a full charge via USB-A (5 V), and features user-friendly tools like a 2-minute Smartimer and 30-second QuadPacer, plus the Easy-Start mode to ease new users into sonic brushing.