Automatic tension Top loading jam-proof bobbin system with clear cover (machine uses Class 15J bobbins) One-touch stitch selection 3 Stay Bright LED lights Optimum power control Drop feed Extra-high presser foot lifter Accommodates many types of thread spools Warning signals Aluminum frame Built-in stretch stitches Built-in quilting stitch Twin needle function 7mm stitch width One-step built-in buttonholes (choose from 4 different buttonholes) Optimal stitch settings Needle up and down function 13 needle positions