Sony is expected to unveil a slightly updated version of the MDR-XB950. The new headset showed up on the FCC in late November and it appears little has changed in the design, mainly the overall shape. There will be 2 models, one with new low energy Bluetooth ver. 4.0, and the other with BT LE and NC built in. With the addition of NC, some of the controls will shift around on the headset.