The Featured Video Add-on allows you to add videos to your product.
Once the Featured Video add-on is installed and enabled, you'll now see the option to add a video to each product above your product images.
You can either paste in a url or upload the video to your Media Library.
You can paste in links from:
When you use the upload option and either upload a new video to your Media Library or select a video already in your library, the Featured Video add-on will use the WordPress shortcode: [video width="1280" height="720" mp4="http://yoururl.com/wp-content/uploads/2014/07/Test1.mp4"][/video].
Once you've added your video and publish or updated your product, you'll see a preview of your video. You can also save the product as a draft to see the preview of the video.
Once your product has been published, your customers will be able to watch a sales video for your product.