small issues with the "Xbox 360 - Keyboard Input Device"

After one week duration test, I can now say something to the part:
- Very good wearing feeling (nothing pushes or tweaks to the ear)
- Sound-technically really is top notch
- Processing technically absolutely flawlessly
- Installation is made easy and children within 10 minutes (if you subtract the time to unpack * grins *)

But there is also a small disadvantage:
The total is not 100 'guaranteed compatible with the "Xbox 360 - Keyboard Input Device".
Once you connect the hardware keyboard and its controler it turn the headset is "still" all well. But once you have typed a message with the input device, there is indifferences with the mic and headset. The Voices of the other players is looped directly to the mic, although one is itself no noise from view. The others talk about the "echo effect" as if you were his boxing would too loud and thus the mic is activated.
So best have no input device on the controler, or if, these are not using.

Therefore, a deduction of points - but otherwise absolutely great !!!

PS. If you do buy the part, then ordered / bought you definitely 2 battery sets (one for play, the other for charging) them. Because after approx. 10 - 14 hours use are empty batteries.