Electromagnetic Vision

By applying Electromagnetic Field Manipulation to himself, and modifying it to such degrees that it enhances his vision, Hotaru has gained access to Electromagnetic Vision. Hotaru can perceive the world around himself based solely on the patterns of magnetic and electrical energy. He is able see the natural magnetic auras surrounding living beings, as well.

The entire electromagnetic spectrum or most of it is visible to him and can "tune" his vision to interpret the various ranges of the energy. He can see radio waves (which includes AM, FM, and TV frequencies), radar, infrared, visible light, ultraviolet, power waves, x-rays, gamma rays, and even cosmic rays. He also has limited night-vision and thermovision.

Hotaru can also see the energy flowing through power lines and technological objects (can tell if they are active or not). He can tell if a radio transmitter is 'on' and if it is sending signals. With infrared he is able to perceive the infrared spectrum, allowing him to see any and all kinds of heat signatures. This ability is incredibly useful for observation purposes as he is able to see the heat presences of any living targets. His this vision however should not be confused with dōjutsu.