This demonstration video discusses and shows the features of Zeagle´s Envoy Deluxe Regulator. It has a light 2nd stage to prevent jaw fatigue which also adds to overall comfort. The Envoy Deluxe is Nitrox compatible to 40 and also has diver adjustable air-flow and venturi. This scuba regulator´s compact balanced first stage features 5 low pressure ports and 2 high pressure ports which will allow you to configure your setup many different ways.