The K-NFB gives the user an initial "situation report", describing what it can see. The user then makes a decision about whether to take a picture.Link (via Futurismic)
After a few seconds to process the image, the contents of the document are read aloud.
A set of earbuds come as standard, but the sound could also be routed through a Bluetooth headset or a set of speakers.
Sight & Sound says it will help with the ad-hoc reading of documents such as bills and receipts, instructions on food packaging or medication or emergency evacuation notices in hotels.