I decided to try the-ear for comfort, I am very satisfied, it's just confusing, turning his head, Bluetooth hands-free kit is very powerful (see too, complained of hearing the background as well), the sound quality is excellenet, the helmet of shortcuts (play / pause, et.prise call) his practices. attention to the helmet in the correct direction (not necessarily logical) to not get lost among connection and call pickup. aesthetically without reproach, the materials are noble. I highly recommend.