Brought this for when my kids on the back and it’s honestly one of the best things I ever brought. First off the intercom is super clear and has great sound, it’s super simple to install, has great features like radio player and Spotify share and the bit that sold it to me was the ability to connect to my insta 360 x5. The only negative think I have to say is it’s a bit to button pressy (if that’s a thing) first time out the box it’s a bit much but after a few uses it easy. Fits in our HJC helmets perfectly