What ability is this mimicking?

[CyberThread]

What abililty is this mimicking , blind sight?



A marruspawn can
hear across great distances with ease, gaining a +4 racial
bonus on Listen checks. A marruspawn’s hearing is so
sensitive that it can sense the presence of most creatures
merely by the sound of their breathing, their heartbeat,
or their movement if they are within 30 feet.
When a marruspawn detects a noise, the exact location
of the source is not revealed—only its presence
somewhere within range. A marruspawn can take a move
action to note the direction of the sound. Whenever a
marruspawn comes within 5 feet of the source, it can
pinpoint the sound’s location. Undead, constructs, and
other creatures that have no metabolism are not subject
to being detected by discriminating hearing unless they
move—in any round when they move, they are detectable
by the sound they make while moving through
the air or shuffl ing along the ground. Only incorporeal
creatures are completely undetectable, unless they wish
to be detected.
Resistance to

[sleepyphoenixx]

limited blindsense. Blindsight can pinpoint without an action. Neither has the type restrictions.

[Crake]

Actually, that looks more like a sound based version of scent. It follows the rules for it almost exactly, except that it's sound based, not smell based.

[Baroknik]

Reads almost identically to Scent. Differences: wind doesn't matter, is auditory rather than olfactory, effected by creatures metabolism.

Edit: Swordsaged

[nedz]

It's quite similar to Listening Lorecall — a Ranger spell.