Demon's Bawl

Demon's Bawl (悪魔の泣き喚く, Akuma no Nakiwameku) is a sub-species, sound-based caster type magic that allows the caster, that is, Zadkiel to change the frequency and loudness of his voice altogether; that is, everything he says, screams or whispers is can be converted into ultrasonic sound.

Overview
Demon's Bawl is the offensive counter part of Angel's Voice; this caster allows him to project his voice in the ultrasonic spectrum of sound, making it, once again imperceivable to the human ear and thus undetectable. Much like Angel's voice, he can control the frequency and loudness of his voice while using it; giving him a wide range of 20 kHz-500 gHz (gigahertz). Though, when enraged this frequency can go up to 1 terahertz and can have a loudness of up to 3,120 dB; allowing him to level a small town easily which just his voice. Due to being ultrasonic in nature, they can also be used for navigation, similar to a RADAR; he can project ultrasonic waves by making small sounds or whistles from his mouth and then wait for the sound to bounce back, so that he can observe them, giving him the ability to "see" via sound waves alone. He can also use this to perform medical examination on his allies by projecting these ultrasonic waves and performing a completely ultrasonography on their bodies to check for anomalies. His ultrasonic voice has even more applications, since unlike his Angel's Voice, it is not integrated with his normal voice, he can control it better and even "turn it off", if he wishes to. In any event, with this ability, Zadkiel synthesizes a very close analogue of three-dimensional 360% human sight; this RADAR has a massive range of 2.5 miles or 4 kilometers. These sounds are generally received by his superhuman sensory system and returns to receiving regions of his brain; which process the data and uploads a three-dimensional map in his mind, with the location of hurdles, objects, beings, etc. Since this ability isn't based on sight/light, Invisibility is useless against it, as are most forms of Camouflage.

Trivia

 * Works best with Angel's Voice.