Dudao F2+ smartphone holder for air vent, clamp - blackDudao F2+ smartphone holder for air vent, clamp black Looking for a reliable car holder that will keep your phone stable while driving? The Dudao F2+ smartphone holder is the perfect solution for every driver! Thanks to its mounting on the air vent using a solid metal hook, you can be sure that the holder will stay in place, even on bumpy roads. The automatic clamping mechanism makes it easy to use just place your phone and the arms will secure it.