With UP-OCC wiring, bluetooth 4.2, and aptX set at default, you can expect good performance. If you have a Mac, you could use Bluetooth Explorer app to change the codec to a different one that suits you best! Wouldn't dismiss it right away. Although the codec would be nice, most users will benefit more from aptX as it is the more widely supported codec and will still sound great. Also, compared to others, we use bluetooth 4.2 for much better reliability than 4.0 and 4.1 and a larger battery so you can use for a longer period of time without charging!