Actually, it's a high-speed phone/device charger for the accessory plug in any car—we just said for a joke, which people expect. This 2.1A rapid charger fits in a cigarette lighter plug, and has a built-in USB port. Comes with a retractable, 3-foot cord attachment with a USB plug at one and a micro-USB at the other. You pick the purple, green, orange or blue pair to match your car, hair or eyes.