Sry guys... I hope this is the right place for me to ask questions...

Currently I'm comparing SteelSeries Siberia V2 and SteelSeries Siberia Neckband...
1. Can I know what is the differences in performance? [don't mention about design]

2. And what is the differences between Gaming Headset (Razer, SteelSeries) and other Professional Headsets (AKG, Sennheiser, Dr. Dre, JBL)?

3. Lastly how about Razer Chimaera wireless headset? Worth waiting for it?

I will use it mostly for music (pc, iphone) and some gaming...
Budget RM300-600

Thx for your precious advices