Kensington Iphone Car MountGive your iPhone GPS, podcasts, and phone calls a sound boost with the Kensington Car Mount. The built-in amplification system in the cradle doubles the volume coming from your iPhone speaker, making it easier to hear your turn-by-turn directions, calls and more. The cradle mounts in seconds to the windshield or vent and holds your iPhone securely on even the roughest terrain.