I have a Sena Momentum....absolutely love this helmet everything built in.....Bluetooth connects to my phone....wife and a few riding buddies also have this helmet...we can all connect to each other and communicate while riding (can easily disconnect for a while and reconnect if there is a chatty one in the group!).....volume controls on the side of the helmet easy to use and the battery charge last for days.....can make calls and answer using voice control....music fades while communicating and then comes back on when it goes quiet.... great helmet..... (I'm not associated with this company).........