Tetrax is designed to be installed inside your car and, thanks to the wide range of models available (EGO, GEO, XWAY and FIX) can be used for numerous devices as: - Cell phones - Portable satellite navigation systems - Remote controls and many others. The EGO, GEO and the XWAY models can be fixed on the air vent frame wile the FIX model can stick to any plain surface. Tetrax versatility gives no limits to your imagination for its applications in the car, at home and office and helps to keep your everyday portable devices in order and within reach.