I love my Scala G4. The bluetooth feature is great and I love listening to music especially on long highway rides. I listen to my Ipod and if my phone rings it automatically interrupts the music so I can answer the phone, most people say that they can't tell I am on the bike. As soon as the call ends it switches back to the Ipod. My phones navigation system (i have an android) provides audio directions through the headset and since I am directionally challenged that is awesome for me. I have several friends who have the G4 and the intercom system works well too. Not inexpensive but it is high quality and worth the money.