The universal holder is designed to fit mobile phones. It can be used on its own or in combination with a headset, in-vehicle car charger or a hands-free car kit. The mechanism grips the sides of your phone allowing you to use the charging connectors on the bottom of your phone or the headset jack on the top. Effortless Installation. It swivels, rotates and adjusts to virtually any position and installs in seconds. Mounting base and hardware included for convenient placement within your vehicle. Use the included mounting base screws or the double-sided tape to affix to vehicle's interior surface.