Škoda Develops Duobell Bicycle Bell That Penetrates Noise-Cancelling Headphones

Škoda has developed the Duobell, a bicycle bell designed to be heard through noise-cancelling headphones. According to Dezeen, the bell operates at 750 hertz, a frequency that exploits a gap in the audio filters of active noise-cancelling headphones. Hacker News reported that Škoda collaborated with University of Salford researchers on the project and plans to make the underlying research publicly available.

DezeenŠkoda Develops Duobell Bicycle Bell That Penetrates Noise-Cancelling Headphones