BrailleSense U2 QWERTY

Visually impaired users can access twitter with this device

Screenshots

Hunter's comment

Improved GPS receiver and electronic compass allow you to explore your surroundings and provide instant, accurate directions or real-time, turn-by-turn navigation to your destination. GPS map data is an optional add-on.
Source

BrailleSense U2 QWERTY is a great product perfectly engineered for the Deaf-Blind users . In addition to being a perfectly designed product, it’s the fastest and most advanced note taker which supports QWERTY. Also, with the BrailleSense U2 QWERTY, the Deaf-Blind users can socialize thanks to its Instant Social Networking features. It will be easy for the Deaf-Blind users to tweet, chat with family, and co-workers using Google Talk anytime.

Link

https://www.hims-inc.com/product/braille-sense-u2-qwerty/