Read&Write features include:

• Text-to-speech: Read what I type including individual words, passages, or whole documents aloud with easy-to-follow dual color highlighting.
• Text & Picture Dictionaries: Provide definitions and display images to help with word comprehension.
  Vocabulary List: Creates a list instantly into a new doc, including selected words, the dictionary definitions, images
• Rewordify: simplifies the readability of text without changing the meaning. (Only available for Read&Write for Google Chrome)
• Check It: Reviews writing for incorrect grammar, spelling (phonetic), capitalization, punctuation, verb tense and more.
• Audio Maker: Converts selected text into an audio file, and automatically downloads
• Talk&Type: Turns the spoken word into text (unavailable for Read&Write for Mac users).