Skoda designed a bicycle bell that gets past noise cancelling headphones, and are giving away the idea.

Hannah Fry short video.
https://youtube.com/shorts/Hwn3gJ9xw1M

Edit to add tags.
#BikeTooter
#Cycling

Skoda steps in to the battle between bike bells and headphones

YouTube

@Maker_of_Things

In my experience, the reason people can't hear bike bells is cars are too noisy. But surely there are a lot of situations when this bell should help! Nice of them, releasing the specs in the open!