Please don't listen to YouTube in a crowded train wo headphones
December 5, 2018 10:39 AM Subscribe
Writing from a crowded waiting room where four (4!) Phones are competing to fill the airspace with (variously) 2 news programs, one makeup tutorial and one video about a bouncing dog teaching multiplication. I know that cell phone blockers are illegal, but does anything exist that would allow me to electromagnetically block cell phone speakers?