The Power Port SPP04 4-Port Auto Power Adapter Operates Four 12V Accessories simultaneously through Cigarette Lighter Receptacle. Ideal for use with 12V accessories like cellular phones radar detectors Portable TVs CD players handheld video games lights and more! Now you do not have to unplug your cell phone to plug in your laptop. Perfect for the executive on the go in an ever expanding world of rechargeable electronic devices.