The Micro Bluetooth adapter pleasantly surprised me. Works very well with my Bluetooth headset and reach almost the entire apartment, despite the small type. (At least 10m so)
But first I had problems, I could not set up the headphones properly. It was only with reduced quality as a mono headset. This was due to the standard Windows drivers.
My advice therefore: Definitely instalieren the enclosed driver before plugging in the adapter, or the current of the CSL website. Then everything goes easily and immediately.