Amazon offers downloads of Jane Austen's Pride and Prejudice Kindle eBook bundled with Audible Narration for free. (Check the "Audible narration" box under the price on the product page to receive it.) That's $2 below our February mention, $9 off list, and the lowest price we've seen. The digital audiobook is narrated by Rosamund Pike.
Note: You can also opt for just the Kindle eBook for free, but as it's in the public domain, it can be found for free elsewhere.