Sony to introduce cheaper MDR-ZX550BN headphones?

This past April, Sony introduced the new MDR-ZX750BN headphones with Bluetooth and built in noise cancellation.  At 149 euros, they are not that expensive but reviews have not been that stellar regarding the noise cancellation feature.

At this moment in time, I have no more information regarding the new MDR-ZX550BNs except that it will ship with bluetooth and noise cancellation, and that they should be at IFA.  Otherwise not much more information, hopefully Sony has fixed the NC issue.

I just wish Sony would decide to release an updated version of the MDR-NWBT20Ns.

Source: e-POSTEL