Ok this one has me stumped and I don't know if it is a hardware or software problem.
Firstly I have 2 headsets:
a ex-05 http://www.amazon.co.uk/Gioteck-Wireless-Multi-Format-Headset/dp/B005LN5SZ8/ref=sr_1_4?s=videogames&ie=UTF8&qid=1430140042&sr=1-4&keywords=gioteck+wireless+headset
the...