And with Whispersync technology, you can switch seamlessly between the e-book and audio book for an immersive experience. (susankayequinn.com)
Amazon's Whispersync feature enables you to move seamlessly from reading on your Kindle Paperwhite to reading on a smartphone or your computer. (dummies.com)
This allows for a few dollars in savings if you want to take advantage of Whispersync for Voice, but sadly there is no bundling program yet to buy both at a lower price. (goodereader.com)