The Track heads shaver is waterproof, so you can even take it in the shower. For a better overview of charging, this product has an LED indicator. The Philips Series 7000 S7786/55 can be powered by the mains or using a battery. This shaver is meant for dry shaving. If you find yourself pressed for time, you will definitely love the fast charging. The reliable assistant can remind you when it's shaving time. Simply install it into your phone and connect wirelessly using Bluetooth.