Magnetic Air Vent Car Mount Holder 360 Degree Mobile Phone Bracket for Cell Phones and Mini Tablets POWERFUL MAGNETIC MOUNT: no interference with your devices: Inside the magnetic base are 4 permanent magnets, which are aligned precisely to maximize a unidirectional, short distance magnetic force. This is a closed forced field that effectively reduces magnetic force beyond short range. Hence avoid any unnecessary interference with your smartphone and tablets. UNIVERSALLY: compatible with two thin metal plate, which can insert into phone cover and back cases OR adhere to the back of your device; the circular metal plate will stick on the Mount, Please removed the circular piece of metal from the front of the magnet before using 360 DEGREE ROTATE: Rotate your smartphone and swivel your display as you please. The base of the mount remains fixed into the air vent of your car and does not move, no matter how much swiveling or rotation you do. This guarantees that your smartphone will always remain in your preferred position EASY YOU USE: This Air vent universal smartphone magnetic car mount holder is 10 times easier to use than any other magnetic car mount holder due to its simple and complementary design. It has a sturdy rubber base and a powerful magnetic head for holding smartphones. Cradle-less Design: No Cradle, No Bracket, No Clamp, only the magnetic force can ensure a safety operation.