Function：Aluminium body light and smart;Four-step buttonholing;20 built-in stitch patterns;Adjustable pressure;Simplified presser foot；Forward and backward sewing;Adjustable knob for thread tension;With the free-arm design, flat bed sewing and cylinder type sewing both available；Electronic speed-controller;The built-in light makes the sewing area bright;Controllable stitch length;With accessories for sewing zipper, darning, button attaching,and buttohole;Multilingual instruction manual