Bluetooth USB Adapter Class 1 (ç to operating up to 100 meters) that works directly in Ubuntu without installing any software (tested with Ubuntu 14.04, but must also operate in 12.04 and 13.10). It is even recognized by my Windows 8.1 that runs in a virtual machine VirtualBox on Ubuntu.
Also works on Fedora (tested Fedora 20).
It should also function normally in the other Debian-based distributions, but I have not tested to confirm.