This is a closed forced field that effectively reduces magnetic force beyond short range. Hence avoid any unnecessary interference with your smartphone and tablets.
Universal: compatible with two thin metal plate, which can insert into phone cover and back cases OR adhere to the ack of your device; the circular metal plate will stick on the Mount.
Clamps to car air vent and provides a stable platform for mounting your smartphone, and other devices, maximize convenience while driving.
Sturdy: design with high quality rubber holder, easily insert into or remove from any car vent, hold firmly without causing any damage.