should O2 give me guarantee for my device on the second year ?

Hello ​@Heitorrg,
thank you for contacting us with your question. Welcome to the o2 Community. When did you receive the devices? Were the Airpods defective from the start?
Kind regards, Bianca

The statutory guarantee is 24 months but after 12 months it is up to the customer to prove that the product was defective at the time of purchase, so it will depend on what you mean by not working properly.

The microphone of the Airpods are not working correctly you can hear it interference, this probably came from the beginning, because i didn't use to often to talk. I think if one technical check can confirm this. Also to mention that can not be damage in 15 months.. i have to care a lot. So at least should be check

Hello ​@Heitorrg,

as bs0 wrote, you would need a proof that the Airpods were defective at the time of the purchase. Did you already contact Apple about your Airpods?

Best Regards,

Gerrit