I bought a BT 'headset' type thingy from Amazon that has APT-x on it as my current one is old and it has always sounded terrible via BT compared to wired.
The list of all APT-x BT stereo headphones is here... APT-X Headphone list
. I found another list, but, it linked back to each individual page on this list, lol.
The one I chose to buy, primarily based on price, but also on user reviews was this one... BlueAnt Ribbon
I didn't want a big 'Beats' type deal, so it had to be a small model. The only ones I could find to buy in the US at a 'reasonable' price of $24 was the BlueAnt Ribbon and the HTC bluetooth stereo headphones. The HTC cost about twice as much with shipping. Mainly because the product is not (yet?) available in the US and the HTC is shipped from Taiwan after buying on Ebay.
There is a really slick silver looking dealy, but, I don't have $120 to blow on something that will likely function in the same capacity, but, looks cooler. Maybe when I spend more time making money and less time trolling XDA forums I can buy them, lol.