I have Cardo Scala Rider equipment, soon to be upgraded to G9 sets.

I currently have Scala Rider Q2 headsets. They are bluetooth and wireless. They provide intercom for 2-up riding plus bike-to-bike communication for up to one other set (pairing with up to two sets total) with up to a one mile range (line of sight). The G9 sets will provide continuous intercom with up to four other sets and up to nine sets with voice-activated intercom. I've found that even on long trips, you don't need much more range than one mile. They will sync to your smart phone for hands-free, voice-activated cell phone use. They will sync to your gps for turn-by-turn navigation, too. The G9 sets will sync tomyour iPod for wireless music.

They also have a wired cord that plugs into your iPod/mp3 player for music. You can listen to your music and it will automatically be overridden by (in this order of priority): 1) gps 2) cell phone incoming call 3) intercom or bike-to-bike comm.

There is also an adaptor that EC sells that you can use to plug into your Wing radio instead of your iPod. Your can control your volume on your iPod by manually controlling it or by purchasing a remote from Monster, which I also have. The remote is on my handlebars and allows me to pause, adjust the volume, skip a song, or repeat a song. No way to jump from playlist to playlist. With the F6B's capability via the USB connection, the Monster remote is rarely used.

The system for two Q2 sets is around $260. The Monster remote is about $20. The G9 sets are about $290 for one set/$520 for two.

The headsets are easy to install into a full-face or 3/4 helmet. Not recommended for an open-face helmet because of wind noise and positioning the speakers and mike boom.

I've done some repositioning of the speakers in my helmet to get the right clarity/volume for cell phone calls. Oh yeah - it also has fm radio, but it ain't worth spit.

Positives: wireless, less expensive than a CB and wired headsets. Also, I have a 3/4 helmet and today took two phone calls. The folks on the other end had no idea I was on my bike. Negatives: price (but the best out there IMO)

Otherwise, I'm very happy with it. As I said, I'm gonna upgrade to G9 sets this winter.