An air vent clip is a device that can mount a phone, tablet or GPS device on a car dashboard's air vent. Air vent clips are available on Amazon, eBay and other venues where GPS and phone accessories are sold.
Car air vent clips can clip onto any air vent and are able to mount most phones, tablets and GPS devices. Most are available for under $20. Most have adjustable cradle sizes to fit different models of phones. Some use a powerful magnet to keep the phone or tablet in place. GPS air vent mounts are often sold by the company that produces the GPS device.