What is the max time limit for sending a voice text on iphone 8 via iMessage?

Hi,

I am wondering if there is a time limit on the duration of a voice text recording sent thru iphone 8’s texting app? In the field where one would normally type their text msg, there is a microphone icon that one can press and hold while speaking and send the voice text instead of typing which helps to avoid sending lengthy text msgs and I know there is no character limit between two iphone users like there is with non iphone brands but is the same true when sending a voice text or is there a time or size limit on voice text files?

Thanks!

Gina G.