Function：Aluminium alloy body, light and easy to carry; 20 built-in stitch patterns;Four-step buttonholing 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