The FXONE BLACKFX Double Foil Shaver is a professional quality shaver with a replacement battery. Experience the new N1 brushless motor with dual ball bearings for greater efficiency. The interchangeable lithium battery pack with a quick release button offers up to 3 hours of run time. Get closer, clean shaves on the neck, face and hairline thanks to the pivoting foil head with a locking feature and hypoallergenic gold titanium foils. Check out the BaBylissPRO BlackFX+ All-Metal Lithium Outlining Trimmer and BaBylissPRO BlackFX+ All-Metal Lithium Clipper for matching FXONE tools, all compatible with the same battery.