While there's no indication that they got the game to test it with, the folks at the FCC did at least get to spend a bit of time with the new wireless guitar for the PS3 version of Rock Band, which is more than enough to make us a tad envious. Somewhat interestingly, the guitar looks to come bundled with a fairly unassuming-looking dongle, which would seem to be unnecessary if the guitar used Bluetooth, as some had previously speculated. Otherwise, the FCC filing looks to be about as standard as they come, complete with a snippet of the manual, a slew of test reports, and a few shots of the guitar's innards thrown in for good measure (click on through for a glimpse of that).