Anyone looking for a headset which is extremely bassy, should the devil Airy stay away. Sonically neutral it is true then even more. Had I brought the headphones in the devil shop, and compared him to the devil of Aureol. The plays in a higher league! However, the decision was made against the Aureol because he has an open system, and it is thus not to be used in bus and train without the seatmate is listening. For operation via Bluetooth: Works flawlessly! Even calling it with the built-Micro. The battery lasts a long time and he should go to their knees, just the supplied 3.5mm jack / jack cable connected, ready!