not suitable for all cars

The Belkin is equipped with a removable wire passes, and that is where it is a pity ....

In fact you have to be lucky to have fixed vents up and down (but possibly rotates from right to left) and only the fins inside the vents rotate up and down, and there nickel, your torque support / smartphone does not plunge by its weight.

Or like me you are unlucky enough to have right stationary vents left, but moving up and down, and many live on all dives, and suddenly it sucks.

where I said it's a shame for the past detachable thread is to cover all cases, it is sufficient that Belkin provides a second grommet in the box, equipped with a long rubber strip.
This tongue could be inserted into the fin lowest of your mouth ventilation, thus preventing the so-called mouth plunges head first with everything, in short, a rubber tongue vocation "hold / Brake"