recommendations for ear defenders

[JoMaman]

Hi,
ds1 has recently become sensitive to machine noise and we are going on a plane in a few weeks so i'm going to try ear defenders for the journey. Can anyone recommend what type/make is best for a 4 year old?
TIA

My ds gets on well with these ones:

www.thesafetysupplycompany.co.uk/p/1069863/peltor--childrens-kids-green-ear-defenders---conforms-to-en352-1---snr-27--3m-z43435560.html

thanks

We have edz kids ones

thanks - got a pair of each in the end as i realised ds2 would be jealous if he didn't have a pair :)