Excellent headset yet possible progress on holding and sound in some cases

The headset is generally very good.
Can make the left and right ears.
The sound is good. It far exceeds what I have used previously.
Mute function (microphone off pretty easy).
The range is about ten meters Housing.

Several programmmes DSP (voice signal processor) with a super filter would be welcome. I tried it in a computer context, and I would like an earpiece that hides totally or nearly keyboard noises when I type at the computer in conversation, as some specialized corded headset. It is not yet at that level, I just think the mouth is in the axis of the keyboard to oreillete, the DSP can not distinguish the keyboard as an external noise.

Another minor complaint, we must be very careful to have the oreillete in the ear canal, if listening is not very good, or sometimes it takes a little gynamnastique / replacement during the conversation my case, the oreillete sometimes tends to get out of the ear. It is not a matter of diameter ambout, but especially long. A cap of 0.5 or 1 centimeter longer greatly facilitate holding the pillow, Dommange all caps is the same length no possible extension.