Looks like a nice clean setup if you were using O2 a lot in flight


https://www.preciseflight.com/general-aviation/shop/product/boom-cannula/

I didn't have this one, but I do have the one from Mountain High (a little less expensive)

https://www.mhoxygen.com/product-category/cannulasface-masks/cannulasface-masks-e-z-breathe/

I used it in my LongEZ where there is little room for anything and wanted fewer things in the cockpit. The stick-on mount will probably be on there forever. I highly recommend vs the standard round the neck type.