Headset lightweight performance. the ear attachment system intra does not hurt, even after 12H of use or more. the bag system that makes charging is really useful and clever (there may be a missing belt attachment system). Pairing multiple phone looks super helpful (I had three phones to connect it) but I put one star less because there is no compatibility with phones bluetooth older and it's a shame (I am obliged to transfer my two "old phones" to the one connected to the eDiscovery. Despite this it is a great product.