【Product Description】 Jump Starter for Makita 18V Booster Cable with USB This product allows you to connect a Makita battery to create a jump starter. The switch controls the USB on/off function. Please be aware that electricity will flow to the terminals as soon as it is connected to the battery. This is not a genuine manufacturer's product, so please use it at your own risk. We are not responsible for any issues arising from its use. It's compact and doesn't take up much space, making it convenient to keep in your car for emergencies. Operation has been confirmed via USB power-on test. *Please note that the case and battery are not included.