The Mysterious Bat Phone

The Mysterious Bat Phone. Plus an annoying aircon controller. Web Site: http://www.eevblog.com Merch: https://eevblog.dashery.com/ Hardware Store: https://www.eevblog.store If you find my videos useful you may consider supporting the EEVblog on Patreon: http://www.patreon.com/eevblog Main Channel: http://www.youtube.com/EEVblog EEVdiscover: https://www.youtube.com/eevdiscover AliExpress Affiliate: http://s.click.aliexpress.com/e/c2LRpe8g Buy anything through that link and Dave gets a commission at no cost to you. #ElectronicsCreators