Really simple to install and looks pretty good. Not only do these sound great, but theyre super comfortable. 5 or 39. Both of those rely on a degree of blockage of sound coming in and the QC30 does not. The price is slighly higher than others simliar on the market, but it does seem to be of better quality. Nice thick soles. At that time the left and right earbuds will pair together. Easy to install and look just as good as the ones the dealer installs but at half the cost. Poor sound quality. Compared to snap-on or similar products this tool completely lacks the fit and finish one would expect from a high end tool.