Here's a guide to filter out some of the counterfeit Sony MDR-NX1 and MDR-EX71SL headphones, and spot a fake pair if you receive them. I once accidentally bought some counterfeits MDR-NX1's (neck strap style)...
This is an in-depth review and guide to the Speed-Link Medusa 5.1 Home Edition [SL-8796]. It is a high quality headset (with microphone) with 4 speakers built into each cup for true 5.1 surround sound....