Hi Jeff The newest of the Alva range to my knowledge is the BC640 or BC680. The latter is the one I have. It is far superior to any other display I've used before, and I bear no disrespect to those that have gone before me. The Alva runs on USB or Bluetooth. It is also plug and play, you just hook it up to your PC, turn it on, and it is recognised. It also works brilliantly on the Mac. You can do things like split the display so half of it reads say your Word document, and the other half could say read what your phone says. If you aren't sure, contact Optelec at www.optelec.co.uk Kind Regards, Jackie Cairns -----Original Message----- From: access-uk@xxxxxxxxxxxxx [mailto:access-uk@xxxxxxxxxxxxx] On Behalf Of jeff flint Sent: 03 October 2011 22:27 To: access-uk@xxxxxxxxxxxxx Subject: [access-uk] Alva Braille Displays Have decided to get an eighty of the above, only to discover that there are two, the new one, to me, is the "satellite." What is different about this? Jeff ** To leave the list, click on the immediately-following link:- ** [mailto:access-uk-request@xxxxxxxxxxxxx?subject=unsubscribe] ** If this link doesn't work then send a message to: ** access-uk-request@xxxxxxxxxxxxx ** and in the Subject line type ** unsubscribe ** For other list commands such as vacation mode, click on the ** immediately-following link:- ** [mailto:access-uk-request@xxxxxxxxxxxxx?subject=faq] ** or send a message, to ** access-uk-request@xxxxxxxxxxxxx with the Subject:- faq