A small hole in the back of the handle allows simple refil using a NIVEA refil can. Another nice feature is the ability to use this shaver in a conventional "dry" use, or in the shower to give the sensation of wet shaving, and the rubber anti-slip grip helps make sure you don't drop it. The flex tracker system allows the three shave heads to flex independantly and track the contour of your face while the lift. The three shave heads are covered with glide rings to help the shaver move smoothly accross your face and cut system provides a smooth shave by cutting hair below skin level. The 8040X has a rechargable Li-Ion battery which takes 4 hours to recharge, and provides 40 minutes of shaving time. There is a battery low, battery full and charge indicator, on/off knob, an electronic conditioner dispensing knob and travel lock. Inluded with the shaver is a precision tube trimmer, charging stand with trimmer holder, powerplug, protection cap, travel pouch and 28ml trial can of NIVEA shaving conditioner.