Zen, being half Delthul, can use his Delthul-Esque eyes to temporarily see much farther and clearer than almost any other race.
While it doesn’t heighten his sense of hearing, it does drown out loud sounds such as wind, as seen in this video.
He’s unlikely to use it for long as it puts a decent amount of strain on his eyes, and will probably have a migraine after using it.
https://www.youtube.com/watch?v=zDzhlZ0n0Qo