Why Video Marketing is indispensable for product?

We are a growing IT startup company, Selling Visitor Management Systems Application and having a top client didn't increase our revenue,so we started in-house digital marketing and you wouldn't believe that it does work. Power of Video marketing is very strong while making a product video and posting it with various platforms such as YouTube & Vimeo. We reliased that audience connect with Video marketing more as compare to other platforms.