In the admittedly limited range of high-end noise-canceling boxes, Sony and Bose are locked in a knock-down, drag-out battle. The consensus seems to be that Sony has had a small advantage in recent years, but Bose is eager to come back. Today we get to see the next generation Quiet Comfort design, thanks to the FCC.

Originally posted to / Leaks, the design loosens in the documentation images more or less identical to the current Bose flagship, the QuietComfort 35 II. QC 45, as described in FCC filing, appears to be an off-white or mother-of-pearl color, and you can see slightly modified grids (instead of standard holes) for the external microphones. It also looks like Bose is ready to take the leap to USB-C charging, and upgrade the MicroUSB port on the previous model. Other than that, the physical design seems largely unchanged from its predecessor around 201

6. But of course, the quality of the ANC is largely dependent on less obvious elements, including software.

Oddly enough, the current FCC database omits the leaked image and includes a letter from Bose requesting that the application be withdrawn. It’s dated Friday last week. This indicates that Bose is well away from preparing QC 45 for retail release.