IMPORTANT GUIDELINES FOR SAFE AND EFFICIENT SEWING: SAFETY REMINDER: This sewing machine is not intended for use as a toy. Please ensure that children do not operate it. ADDRESSING KNOTS: If the bottom thread knots during sewing, verify the correct order of the upper thread threading. Portable Sewing Machine Electric Multi-function Mini Desktop Sewing Machine DEALING WITH BROKEN THREAD: In case of a broken thread while sewing, adjust the tension by loosening the upper thread elastic button. Additionally, check for threading errors in the upper thread. STITCHING ADJUSTMENT: If you notice loose stitching, gently tighten the upper elastic button. Portable Sewing Machine Electric Multi-function Mini Desktop Sewing Machine THREAD ALIGNMENT CHECK: If the bottom thread is not catching on the upper thread, confirm that the sewing needle is threaded in the correct direction. FABRIC CONSIDERATIONS: Sewing soft and stretchy fabrics, such as gauze and towels, may yield less optimal results. POWER SUPPLY CAUTION: Choose only one power supply type; using both may result in the machine not running or sustaining damage! True Face Portable Sewing Machine Electric Multi-function Mini Machine