of how long it is used : Threads quickly & easily with top drop-in jam proof bobbin system & automatic needle threader : Push-button stitch selection for optimum length, width, balance, pressure & tension settings : Aluminum frame, precision engineered parts, direct drive needle bar & box feeding system : Optimum power control senses when additional power is required to maintain speed : One-step automatic precisely balanced built-in 2 style buttonholes : 30 Built-in stitches (80 stitch function) for construction, fashion sewing, quilting & more : Self-lubricating Motor : 13 needle positions for individual projects : Stitch Width Control Adjustable : Cabinet Position Portable : Tension Control Automatic : Thread Delivery Horizontal (top loading) : Threading Conveniences - View window for bobbin replenishment, automatic needle threader : Darning plate : Feed Dog Fixed : Foot Fixing Type Snap on/off : Pressure Adjustment Adjustable : Twin needle capability, Built-in storage : Clutch System Automatic (auto declutch when winding bobbin) : Light Built-in needle area light : Motor/Sewing Speed Electronic foot control : Operation & Functions Full electronic touch : Other Control Enhancements Jam-proof stitching : Status Indicator Audible alerts  (less)