Guest Relations has an audiocassette park guide for the blind, which is available with a $25 refundable deposit. Braile Guidebooks are also available to read in the Guest Relations Lobby at each park. There is a self-guided tour audiocassette as well, which is a bit different from the audio guide. If they asked at Guest Relations, they should have been told about these options. If they just asked random CMs they met along the way, it's not likely that they would get the desired response (the information is available to all CMs, but those items are requested so infrequently that they wouldn't come to mind readily.)
The "Ears to the World" personal Show Translation Units do not provide descriptions of the park as one walks around, only translations of select attraction spiels (almost word-for-word to what is available in English on the Handheld Captioning Devices for the hearing impaired.) The technology used to send signals to Pal Mickey, Handheld Captioning, and Ears to the World involves short-range infrared transmitters, and enough transmitters to provide a thorough description of what you're walking past would get very cumbersome with too many signals going in too many directions in such a small area.