Panavise 810-AMP Small AMPS Window Mount Recommended for electronics weighing less than 2.0 lbs. (0.9kg) Easily move electronics from vehicle-to-vehicle or remove for security Electronics mounting plate tilts up and down (locks with knob) and features 20 degree Tilt in all directions Powerful suction pad attaches to any smooth, flat, non-porous surface  including windshields and side windows Ratchet arm has 140 motion; knob locks arm into place