I was also surprised that it has a built in led display that circulates ever changing colours, which adds to the overall ergonomic design. Some reviews said to order a size or size & a half up from your normal shoe size. could not have had any think better for the makers of the rest of air buds it still had us on the edge o our seats and it takes you out of the realy world for a while and that is a good thing Sound was great for a $10 pair and ear fit was great once I swapped out the rubber ear insert for the largest ones provided . Would have liked it to use both plugs on the wall but the center screw works well and holds the protector well. I gave this product a high review because simply for the price you cant beat it. I have worn these shoes for a week now, so far so good. The Laguna has an exceptionally thick powder coating finish on it which is very durable but probably also makes the outside diameter of the dust port just a hair thicker than some other brands, which explains why the 4 inch PVC needed just a tiny bit of sanding of the inside to make it fit. These shoes are perfection. I would not recommend these Bose headsets.