Philips Norelco Shaver 4500 (Model # AT830/41) provides a powerful shave while protecting your skin - especially on hard-to-reach areas like the neck. Aquatec Technology allows you to shave wet with gel or foam (in or out of the shower) for extra skin protection or dry for convenience. DualPrecision heads are designed with slots and holes to quickly and comfortably shave both long and short hair. With the Pivot, Flex and Float System, the heads independently adjust to the face's every contour to quickly catch every hair, even on the neck and jawline. The Skin Protection System has rounded low-friction heads that adjust to the contours of your face to limit skin irritation. The integrated pop-up trimmer conveniently trims sideburns and moustaches. The Lithium-ion battery delivers 50 minutes of cordless shaving after a 1 hour charge. A 3 minute quick-charge provides enough power for one cordless shave. Simply rinse device under faucet for easy cleaning. Shaver 4500 comes with a 45 day risk-free trial and a full 2-year warranty. For best results, replace shaving heads with HQ8 replacement heads every 12 months. Packaging includes: Electric shaver, protection cap, power cord, cleaning brush.