Portable and fully automatic double line: This sewing machine is automatic two-thread sewing. It is not necessary to press the switch, the lower thread is stronger, which facilitates the whole sewing process. You don't have to worry about complicated operations anymore. Two power supply methods: This sewing machine is powered by 4 AA batteries (not included) or 6V power supply (including USB cable ). Note: The USB cable is only used for power supply, not for charging. Pay attention to the installation of the battery. Improper installation method will prevent the portable sewing machine from working. Good helper at home: It can be used to sew wall curtains, small DIY items, personal clothes, etc. . It is suitable for dense non-elastic fabrics such as cotton, linen, denim, wool, felt, canvas, etc. Your life will become easier and simpler. Lightweight and Compact: The handheld sewing machine is lightweight and portable, you can take it with you anywhere. If you encounter any broken clothes during the trip, you can use our sewing machine to repair them immediately, and it won't take up your extra space. Perfect for Beginners: The threading steps of the sewing machine have been carried out before shipment. You just need to power the sewing machine, then you can easily start sewing. If you have any doubts during use, you can refer to the manual.