1Floating cutter head design, fit face contour, safe and fast shaving beard without residue, make you face clean. 2Shaver head washable design, the cutter head can be opened to clean residue, extend service life. 3Multi-functional, 3 kinds of cutter heads are available, can help to trim beard, sideburns or clean your face. 4Large capacity lithium battery, USB charging design, multiple power supply mode, bring you convenience. 5Travel safety lock design, hold the on/off button for 3 seconds to lock or start the shaver.