[Double Thread Sewing Machine] has obvious advantages over similar products on the market. There is no need to turn on the machine, the bobbin thread is fixed, and the entire sewing process is easy and simple. You no longer have to worry about complicated operations. Two Power Supply Methods This sewing machine is powered by four AA batteries (not included) or an AC adapter. Be careful when inserting the batteries. If it is installed incorrectly, the portable sewing machine will not work. [Good Helper at Home] Can be used to sew curtains, DIY accessories, personal items, etc. Suitable for high-density inelastic fabrics such as cotton, linen, denim, wool, felt, and canvas. Your life will be easier. The multifunctional sewing machine is lightweight and easy to carry Lightweight and easy to carry, you can take it with you wherever you go. If you encounter damaged clothes while traveling, you can use your sewing machine to quickly repair them and save extra space. [Suitable for beginners] The sewing machine threading process is complete