A ton of your devices use Bluetooth to communicate wirelessly. But how does Bluetooth work? In this video, we'll dive into the details of how your smartphone sends audio to your wireless headphones. Bluetooth is rather complicated and thus we're going to use a number of analogies and tools to explain it fully. This video is sponsored by KIOXIA. Visit KIOXIA's website to see their lineup of solid-state drives: www.kioxia.com Do you want to support in-depth engineering and technology education? Support us on: https://www.patreon.com/brancheducation Website: https://www.branch.education/ On Facebook: https://www.facebook.com/BranchEducation/ On Twitter: https://twitter.com/TeddyTablante On Insta: https://www.instagram.com/brancheducation/ Or Join us on YouTube Memberships: null This video is part of a series that explores how wireless headphones work. 1) Audio Codecs https://www.youtube.com/watch?v=_ZKNOKHpqE4 2) Noise Cancellation https://www.youtube.com/watch?v=VIi04uD8LtY Script, Modelling, Animation, Editing- Teddy Tablante Twitter: @teddytablante Voice Over- Phil Lee Table of Contents: 00:00 - How does Bluetooth Work? 00:37 - Traffic Lights 01:26 - 2.4GHz Spectrum 02:44 - Issues with the Bluetooth Visualization 05:56 - Details behind Bluetooth 07:30 - Bluetooth Packets 08:27 - Frequency Hopping Spread Spectrum 10:58 - Noise in the 2.4GHz Spectrum 13:05 - Bluetooth Signal Integrity 14:21 - Sponsored Segment 15:33 - Frequency Shift Keying & Phase Shift Keying 18:16 - More Details on Scheduling & Packets 20:43 - Outro Key Branches from this video are: Wireless Headphones & Audio Codecs, Noise Cancellation Erratum: Animation built using Blender 2.90.1 https://www.blender.org/ Post with Adobe Premiere Pro Additional Patreon / YouTube Member Credits Not Shown in the Video: Adit Kaul Credits: Wikipedia contributors. "Bluetooth", "Frequency-Shift Keying" , "Phase-Shift Keying" , "Wireless" Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, Visited May, 2021 Music Credits Sunburst, Tobu & Itro is licensed under Creative Commons Attribution License http://www.7obu.com/ https://www.youtube.com/watch?v=4lXBHD5C8do #Bluetooth #Wireless #Headphones