The Norse god Heimdall was said to have an ear that could hear everything

In Norse mythology, Heimdall, the god of vigilance and protection, was tasked with guarding the Bifrost Bridge, the entrance to Asgard. According to the Poetic Edda, a medieval Icelandic manuscript, Heimdall's hearing was so acute that he could hear the sound of grass growing or wool being pulled. This extraordinary ability allowed him to remain vigilant and alert, warning the other gods of potential threats.

Verifiable through: Poetic Edda, translated by Andrew Cauthery (1995)