Plus Dolby's technology...

https://www.dolby.com/consumer/technology/headphone.html



Coming soon to a iPhone near your hand - Dolby 10.2 surround sound via your iPod Nano! Realistic and completely naturalistic full surround sound via two small ear pieces!

I don't buy it - looks and sounds like marketing hype to me... Dolby Pro Logic II? (maybe Pro Logic one and a half??)