They work well for their intended purpose
My buddy and I each got a Cardo 4+ and overall we are happy with it. The reason I didn't give 5 stars is that we sometimes have issues getting connected, but we always manage to get there with a little effort. Also, these have a habit of cutting out and even losing connection if you don't keep talking. It seems that if we are silent more than 5 minutes or so, they disconnect. However, we've enjoyed having them and being able to communicate while riding. The range seems to be about 1/8 to 1/4 mile, which is plenty while riding. The batteries last a long time and I can get 4 - 5 rides of a couple hours each before I have to recharge. Also, I've found the FM radio feature works well and is nice to have. My phone pairs with the Cardo very easily and works well on calls. And, you will like the voice commands, so learn them and use them. As for multiple rider pairing up to 4 riders, yes, it's possible. But, I find it difficult to get it to work. So, I would say that if you just want to pair with your phone and one other rider, you will like these Cardo 4's. They're easy to install and after a learning curve, pretty easy to use. The JBL sound is also very good, even on the included 40mm speakers. Ride safely!
Verified purchase: YesCondition: New