Stepper motor driving electric adjustable stitch lenngth，minimum precision 0.1mm，stitch length can be locked by setting password.

Stepping motor control backstitch device noiseless.

The height of the presser foot is adjustable within the range of 0-13mm, the presser foot for thin materials is lowered to save time, and the presser foot for thick materials is higher for easy feeding.

Head lubricated by imported high quality mineral grease and bearing type take-up solve the oil troubles completely and keep clean sewing.

26mm dust collector space make scraps easily drop into the collector, keep the sewing plate clean all the time.