You place the phone mounts on this page in the ventilation grid of your car. You can easily attach a ventilation grid phone mount. You attach the phone holder to the air vent with a clamp. This way, no screws are needed. With a phone mount with charging function, you can always charge your device on the go. Go for a wireless charger if you don't feel like plugging in a cable every time. Choose a mount that suits your smartphone.