The online store has a nice design so it's easy to browse. Take a look at the different categories, select one, and browse through the different products.
As with other online stores such as Amazon or Aliexpress, you can see reviews from other users pictures and pictures of the products. You can also ask questions about a product and much more.
B&H Photo Video is an online store app that lets you buy thousands of products (mainly electronics) from B&H, sent directly to your home.