I was on Facebook and saw this image, and I'm wondering if the statement is true or not. From Google translator: 

> Collar with a bell? Better not use!
>
> Your kitten has rattle on a leash? Due to the sensitive hearing, it can be stressed with the constant noise. We will help you to live safe and comfortable? Get rid of the bell!

My question is, is it true it harms cats to use this kind of item? I have bells on my cats so I can know where they are.

[![Image of a kitten wearing a collar with the caption "Coleira com guizo? Melhor nao usar!" and a Whiskas logo][1]][1]


  [1]: https://i.sstatic.net/wsVIL.jpg