Here in PA, it's only legal to have headphones for communication reasons.
The AMA site seems to be down for maintenance, or is really busy with the warmer temps arriving, but another site said, for Illinois, headphones are only legal when mounted in the helmet (which isn't required for riding)
AKA: Tim & 'The Adventure Cycle' VROC #24567, NEVROC, SteelCity VROC
not sure on the legality of mine, but mine also double as ear plugs. I use the in canal kind, and i think they are great. I'd say they are comparable to the 15db reduction headphones. Plus the sound is unbelevable. Maybe one day i might spring for the $200 set, these are the $35 sonys.
nat'l cycle deflector shield
westco 12v30 MF, 30A/h w/ 350 CCA's w/ custom box
TOC stator cover w/ Frankenstator mod!
Soon to have (own or on order)
Mez's 110-FRT 170/80-Rear
Custom rear fender and tail light
Givi hard bags w/ custom rear turn signals
I just read today that only one ear could have a speaker in Il. i don't know if it was true or not but found this while looking for helmet intercoms.
05 VN 750
KURYAKYN grips, helmet locks, and highway pegs
Saddleman saddlebags/sissybar bag
Highwayman gelseat with Protac backrest
self canx turnsignals
Diamondstar headlight modulator
Jardine 2 into 2
MCC turn signal relocator and floorboards
Extended passenger backrest
KURYAKYN LED voltmeter
Custom tank bra with analog clock
Snider paint protector on tank side
130 DB horns