CTIA or OMTP Standard?

[To__K]

Hello!

I am using a Xiaomi Redmi Note 4. Since I would like to buy a Lavalier Microphone, I need to know which kind of TRRS Standard is used on Xiaomi Phones: CTIA or OMTP? Also I need to know whether the Xiaomi TRRS Socket provides Power to the Mic?

Thanks for your help!

 

[To__K]

I'm a bit surprised. I didn't expect this to be such a difficult question(?).