Manufacturer's Information on Package:

Battery Powered Shaving System... emits gentle micro-pulses for an incredible shaving experience.

Now with Low Battery Indicator Light and Automatic Shut-off.

5 Blade Shaving Surface Technology ... has 5 PowerGlide blades spaced closer together to help reduce pressure - for less irritation and more comfort.

PowerGlide Blades ... have a patented blade coating for incredible comfort

1 Precision Trimmer Blade ... built into the back of the cartridge.  Perfect for tricky places like sideburns, under the nose, and around facial hair.