I got this for a new helmet, as my other helmet uses a HJC intercom. It was easy to set up, and is slightly louder than the HJC. Battery life is good, but slightly less than the HJC as that has an external battery fitted into the rear of the helmet. I've never had a problem with battery life, and go on long tours. The Cardo has good quality audio, easy connection, and fast recharging.