My bike is loud and the jbl headphones and sound quality is amazing 10/10The Cardo Freecom 4+ BT system is a welcome addition to my LS2 Rebellion half helmet.The helmet came with snap on pads to put the JBL speakers in. The BT unit has two means of connecting it to the helmet: a clip or glue. The helmet thickness seemed too thick for the clip. I am not a big fan of glue. The helmet chin strap is well made and one side has a cut out that the BT unit’s clip fit onto and feels secure. The boom microphone attaches with Velcro pads onto one of the earlier mentioned snap on pads. The distant speaker wire can be stuffed under the padding in the helmet.The audio is excellent. I use an Apple iPhone and the voice recognition works really well to make a phone call. All in all I am very pleased with the Cardo Freecom 4+ BT system.Only reason I'm not giving 5 stars is because I'm having issues using the voice commands and some of the button push controls. Aside from that, great sound quality on both ends of a phone call, great listening quality for the music and radio! Install went smoothly, although I don't understand how the slide-on clip would be used, every helmet I've seen is too thick for the clip, so you would have to use the adhesive option. Battery life is awesome too!I bought this to have an intercom so I can talk to my wife while we're riding, and enjoy music when I'm alone on the bike. The audio quality is definitely high, controls are easy to use even with gloves, and the controls in the app on your phone, make taking calls, changing to intercom, whatever you're trying, a fairly easy affair. Would ABSOLUTELY recommend for anyone looking for something to have a communication system, or even a radio. Battery life even is out of this world, I'm finding I barely need to charge the battery, even after basically a solid day riding.In short, 10/10, highly recommended.Found a serious design flaw. The volume knob which is located on the bottom of the device rubs on the collar of all my riding jackets. So for my Harley, Alpine stars, offbrand, etc.When I turn my head the volume will go all the way up or all the way down depending on how I turn my head.I can no longer recommend this particular model. I own the pack talk bold/slim series and those are five star fantastic. Unfortunately, because of this volume knob issue I can’t even use this anymore.Best helmet communications. American company. NOT Made in China (Assembled in Ukraine. JBL speakers are fantastic. Bluetooth connection is quick, easy and reliable. No crazy disconnects.Only one serious drawback and that is you cannot use the “share music” function and talk over intercom at the same time like the other brand. You have to stop the music share first manually, then you can talk via intercom. Then you have to manually reactivate music share again. Only one step but makes it more dangerous due to additional control manipulation.There may be a software update in the future to change this, but as of right now there isn’t.If you’re not going to music share, then go with these over the other brand. If sharing music is important, then you may want to pass.Edit update: yay! Cardo just released a software update allowing comms and music at the same time. This is now the perfect headset.This was for husband's motorcycle helmet. He is still getting used to how to operate it. For my part, when I called him while he was riding, it was like he was sitting next to me. There seemed to be excellent background noise dampening. This is the first time he's been able to either call me or take a call without pulling off road. He is adjusting to not being able to hear what HE says to me, but can hear me fine. He researched this a LOT. Would buy again. Please address your technical questions to the seller. Thanks!Decent for talking to others and music feature is nice. But I bought 4 because of the voice recognition so I’m not constantly reaching up every time I want to call someone or start a phone function. Voice recognition is horrible. Half the time it doesn’t recognize your voice and you’re yelling inside your helmet to yourself. Would not buy again.I needed to use the glue on the side of the helmet installation on a SCHUBERTH c3pro. I opted for the microphone tucked under the padding close to the front of the helmet versus the boom mic which may contribute to voice activation barely working and then only when I’m shouting inside my helmet. Music and phone functions work well.