Karen and I have the Scala G4 and they are good. Sound quality is ok (better than I expected) but not as good as in ear headphones. With headphones you don't get to talk though.
If my pipes were stock it may be different (as in better audio) but well, you know.

Overall... I like that Karen and I can communicate as needed and still have the option for music in the background.

SOLD: 07 Black BA, 39mm FCRs, TPUSA stage 1 head, TPUSA 813 cams, TPUSA 10.8:1 pistons, TTP #3 igniter, Specialty Spares Long Cannons, Tsukayu Hard Bags. 82HP/55tq NEW: 19 Goldwing Tour DCT