Compact Electrical Bobbin Winder Portable Automatic Bobbin Winder with USB Port

Versatile Power Options: Power the bobbin winder using either x3 AAA batteries (not included) or the included 3.3-feet USB-C adapter. Avoid using USB-C and batteries simultaneously. The bobbin winder operates on DC 5V 2A, with a maximum motor speed of 3000rpm±10%.

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