A:Â Hello! The Philips Sonicare Series 2100 & 1100 toothbrushes are similar and under the same range of Sonicare toothbrush models. They differ in the availability of intensity settings or pressure sensors.
A:Â Hello! Yes, the Philips Sonicare 2100 HX3661/04 Powered Toothbrush can be used by a 10-year old.
A:Â Hello! Yes, Philips Sonicare Toothbrush models like ProtectiveClean Series, DiamondClean Series, DiamondClean Classic, ExpertClean, ExpertResults, DailyClean, 9900 Prestige and Sonicare for Kids do not use USB charging.
A:Â Hello! Yes, the Philips Sonicare 2100 HX3661/04 Powered Toothbrush needs a USB wall adapter to charge the toothbrush. The package does not include a wall adapter. At Philips, we are committed to sustainability and making our packaging from recycled and recyclable materials. We have removed the power adapter, which helps prevents the equivalent of over 19 million plastic bottles reaching landfills.
A:Â Hello! The Philips Sonicare 2100 HX3661/04 Powered Toothbrush uses Philips Sonicare snap-on or click-on brush heads except the Philips One brush heads. You can use Philips Sonicare W2, W3, DiamondClean, S Sensitive, InterCare, C2, C3, G2, G3, A3, etc.