Build quality was pretty good for the price. com because it is no longer available in store which saddens me. Then my husband converted to olukai too. I bought these headphones as a gift for my 11 year old stepson because he needed them for a game he started playing on the computer. I tried the dongle on a different Samsung Galaxy S20FE 5G and got the same result. Once I swapped the insoles out, though, theyre great. It was not true to size at all. But these slippers are perfect! The HD 206s did not have the boom in the mid to upper bass that the other headphones did, which is a good thing. I would also recommend wrapping the straps around the mount and tying them off tightly to prevent them from unraveling and also as added protection if the clasps were to randomly break or give away.