Singer 4830 32-Stitch-Function Sewing Machine Loaded with options, including 32 stitch functions Top drop-in bobbin; horizontal thread delivery for better stitches Electronic speed control; easy threading and tension system Four-step buttonhole for easy buttonhole sewing; push-button reverse Illustrated step-by-step instruction booklet included This sewing machine is warranted for use in the US and Canada at 110 volts only.