I honestly have to say I am thrilled with the headphones.
I declare times quickly the functions:
1x on center key = Pause
Press again = Play
2x on middle button = Next track
3x on middle button = Previous track
and you can adjust the volume on the little plus or minus yet.
But what we must not forget that the cable
(Ie with the "push Dings") on the back of an extremely small microphone is built.
This can hernehmen for voice memos,
for VoIP (telephone calls via I-net)
or for the determination of the volume of interest (in dB)
(But to note is that the two latter functions only with the iPod Touch 2G work)
Even the sound of the headphones a bit - this is inden table as the standard headphones from Apple
All in all a good investment in my opinion - I think it's a shame but that Apple these headphones not equal mitliefert.
Hope I could help one or the other things;)