a) Air adjuster b) Hot & cold water switch c) Flexlble handle shower tap d) Water-in e) Water drainage f) Computer control panel g) Loudpeaker h) Comfortable headrest i) Towel rack j) Side lamp k) Stainless steel rack l) Stainless steel component, and height adjusted feet m) Hydro-massage function n) creepage protection o)wooden shelf Additional function COMPUTER BOARD(LAMP SPEAKER)