Tetrax has created a great bundle kit for any user of mobile device while in your car and much more. This bundle kit includes (1) SMART and (1) XCASE with integrated metal clip for Tetrax holder works only with device that Tetrax recommends. The Tetrax SMART easily attaches to the air vent, it does not obstruct your range of view when driving and it"s within your fingertips. Some states are forbidding from mounting any objects, as suction pads for GPS, on the windshield. The complete difference for Tetrax from suction pads may also help to avoid burglary, which can easily recognize the typical signs of the suction pad, suggesting the presence of a GPS inside a vehicle. Tetrax SMART incorporates magnets and reinforced clips in a thermoplastic structure designed to support the majority of satellite navigators, PDA and Smartphone"s currently available on the market. This practical, lightweight, low volume model allows the driver to interact with any device in total safety without obscuring visibility. The Tetrax bundle kit includes (1) Tetrax SMART, (1) XVENT fin, (1) XCASE with built-in clip and instruction sheet.