You keep saying that, but it's not always true. The simple fact is that I can totally kill the signal to my Bluetooth headphones in less than 10 feet and do so consistently. This has nothing whatever to do with the level of charge on the batteries. ----- Original Message ----- From: "Richard Benoit" <reb503@xxxxxxxxxxxx> To: <bookport@xxxxxxxxxxxxx> Sent: Tuesday, November 28, 2006 9:24 PM Subject: [bookport] Re: Bluetooth headphones Bluetooth uses the the same frequency band as the newer cordless phones, so it is an RF signal and therefore capable of passing through walls just as cordless phones do. It has a shorter range and ies less subject to interference and is more secure when this is necessary. As long as you use it within the 30 foot or so range it will work anywhere in the house with a clear signal, at least this has been my experience. I use it, ay various times, with the Bookport, a laptop and desktop, and the NLS tape machine, This allows me to move about the house even when using the computer as long as I am reading longer documents and newsletters. Richard