A giveaway is often included in a product review, and is more attractive to the reader because, unlike a typical advertisement, they could gain something out of it, and they are still entertained and informed.
The blogger besides giving her honest opinion will try to encourage her (or his) readership to engagement and visit the sponsor website and social media channels as part of the steps to participate.
With a blog giveaway, your brand will benefit with:
Thank you for your interest!