You can emit specialized sound waves that bounce off objects and return to you, allowing you to "see" without light. You are immune to the blinded condition and can perceive your surroundings in complete darkness up to 20 meters away. You can detect invisible creatures and objects within this range, though you cannot discern colors. Underwater, this range is extended to 40 meters. Additionally, you can use this ability to detect hollow spaces, secret doors, or hidden compartments within 5 meters with 2 degrees of advantage on perception checks for these purposes.

In combat: Once per rest · Out of combat: Once per rest