A guide to the handheld device called The Oracle, also known as the "Coach Device", from Black Mirror Season 4 Episode 4 Hang The DJ (2017) Explained. #Netflix #BlackMirror YOUTUBE: null INSTAGRAM: https://www.instagram.com/bryceedwardbrown TWITTER: https://twitter.com/AstronautBryce LETTERBOXD: https://letterboxd.com/ScifiBryce This video was made by Bryce Edward Brown