I have had the Bluetooth helmet communications system for about 4 and a half years. still working well and charging up. have two sets, one charging and using the other set. If I have a pillion, I use both sets. Clarity is good and clear. Only problems I had is the mounting bracket is poorly designed and broke after a few months of use. I now attach the unit onto my helmet with Velcro. works very well. The volume and song selection nob tab inside is also easily fatigued so be careful when changing the volume and do not over-extend the turning limits. Other than those two issues, both of mine are still working fine and communications either by phone or headset to headset is excellent for the price paid. Was going to buy another head set this time but was too late getting there.