Blindsight

A creature with blindsight can perceive its surroundings without relying on sight, within a specific radius. Creatures without eyes, such as oozes, typically have this special sense, as do creatures with echolocation or heightened senses, such as bats and true dragons.

Monster Statblocks

If a monster is naturally blind, it has a parenthetical note to this effect, indicating that the radius of its blindsight defines the maximum range of its perception.

Type

Genetic