It uses suction as the original but has more holding ability.
Small in size but easy to tighten to car ac vent by the simple knob. Works ok, miata has round vents. Comes with different extension bars. This type seems to tighten better.
Ease of use and mount interchangeability. Holds very strong and sturdy and doesn't break like others did. Stuck it to my windshield weeks ago and still stuck there holding the cam.
Picture is deceiving. This item is not as advertised. Completely defective and useless product.