Technology Features Instant Jet-Air ThreadingTM Automatic Thread DeliveryTM System Full-Featured Differential Feed: 2 to 1 Ratio – gathering 3 to 4 Ratio – stretching 4/3/2 Thread serging Exclusive Fabric Support System Vertical Needle Penetration Pure lighting with 2 LED lights Advanced Serging Features Rolled hemming with 2 or 3 threads Flatlock stitching with 2 or 3 threads Dial adjustable stitch width: 1.5-7.5mm Dial adjustable stitch length: 0.75-4mm Dial adjustable built-in rolled hem Heavy-duty cutting system Side thread cutter 1500 stitches per minute Presser foot pressure adjustment Adjustable presser foot height up to 6mm Convenience Features Built-in needle threading system Enhanced telescopic antenna with thread guides Electronic foot control Snap-on multi-purpose presser foot Built-in ribbon/tape guide Carry handle Built-in accessory storage Other Household needle system: HAx1SP ELx705CF ELx705 Weight: 16 pounds Warranty: 25 years limited, 10 years parts, 5 years electrical, 1-year labor