The sound of the headset is OK and to be expected as in this price range. Unfortunately Besfestigung is not very suitable for the ear. It is to be fixed only on the plastic bracket and these acts already very unstable (the plastic is not very flexible) and pushes in my case the headset away from the ear rather than towards the latter. In addition, the USB port is for charging with a small flap hides which is quite cumbersome to open and also not very durable impression making - rather then leave the same.
I have to compare the Jabra Easygo brought me which has a much better grip, no cover flap and at least as good Klint.
