Welcome to Mobile Witness Online. We specialize in top-of-the-line mobile digital video recorders (MDVRs) and accessories. Our products are manufactured for law enforcement vehicles, public transit vehicles, charter buses, school buses, ferries, surveillance vehicles, ambulances, and emergency response vehicles. We offer 1, 4, and 8 channel MDVRs with a broad variety of options to custom fit them in almost any mobile security application.