Lithium-batteryVery lightStepped razor head for a smoother shaveThe TS-1 is a professional razor and should be used by professionals and is not intended for home use. If the film is pressed too hard during use, it can cause skin irritation as you open the pores when you use a close up razor.The object has a release button on the side that releases the head. This should be pushed all the way in to release the head. If the head is pulled off, it may damage the mechanism.The product is not suitable for fine hair, it should be used on stubble.