You're entering a highly competitive market. Aside from creating info sheets, images and video that show why your products are better than others, you will likely need to drum up interest online in advance. Keep in mind that store shelves are most always full, so to carry a new product they have to decrease the space allotted to another company. By generating true interest first, you can highlight that the product already sells. Also, don't forget to provide samples to bloggers, writers and other appropriate publications so they can review the products. That's a big step in kicking off a true word-of-mouth campaign.