With the Logitech Bluetooth phones, there is no volume control on the headphones. Volume is controlled at the audio source. Another difference between the Logitech and Plantronics designs. ----- Original Message ----- From: "Richard Benoit" <reb503@xxxxxxxxxxxx> To: <bookport@xxxxxxxxxxxxx> Sent: Tuesday, November 28, 2006 4:14 PM Subject: [bookport] Re: bluetooth headphones It is not necessary to carry the Bookport around, but of course, the only thing that you can adjust on the headphones is the volume. If you are interrupted while listening the Bookport plays on. I have listened with the Bookport separated from me by two rooms with two intervening walls and both doors closed with no change in volume or clearness. This was at well over 30 feet. This may be unusual but I'm sure that about 30 feet could be expected at all times. Richard