Skoda develops bike bell that can bypass noise-cancelling headphones, and then gives the technology away for free CyclingnewsŠkoda DuoBell: A bicycle bell that outsmarts even smart headphones Škoda StoryboardŠkoda Designs a Bike Bell That Can Defeat Noise-Canceling Headphones Core77Noise-canceling headphones can’t block out this genius bike bell Fast CompanyThis Clever Bike Bell Can Even Be Heard by People Wearing Noise-Canceling Headphones WIRED
