SAY Security Group USA designs advanced DVR and surveillance solutions for OEMs, dealers, and distributors around the globe. Based in Ohio since 2002, Mobile Witness is a division of an international company with offices in China, Australia, and Hong Kong and a US office to provide the in-country support and product distribution our customers need. Mobile Witness is committed to providing complete support for all of our products, and therefore only distributes products that we can control via source code or SDK.