Earphonejack ( Iyahonziyatsuku), is a Quirk that Kyoka Jiro, and her mother Mika Jiro, use.

Description Earphonejack

Users of Earphone Jack have long, flexible earlobes which act as headphone cables.

Kyoka has earlobes that look like jack inputs (plugs), which allow her to connect them with various objects. These can transmit the vibrations of Kyoka’s heartbeats to other objects, causing internal damage.

Kyoka can pick up faint sounds through her jacks, even through very thick walls. This makes her an excellent reconnaissance worker. It is possible to trick it by creating multiple noise sources to mask the ones it is trying to detect.

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The maximum distance of sound that can be detected by the ears is 12 meters. They can easily penetrate concrete and other hard materials because they are strong enough. Due to their grasping nature, they can act as extra limbs and Kyoka can lift small objects.

Mika may not have all the abilities her daughter uses.

Weaknesses

The sockets of her headphone are susceptible to abuse and damage, just like any other part. One example of this is Kyoka’s first semester final exam, where her ears began to bleed from too much use of her Quirk in a short time.

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Uses Of

Kyoka uses her Quirk mostly for spying and support. She uses her sockets to detect vibrations from enemy movement. Earphone Jack can be used as a whip while Kyoka uses her plugs to shock her targets with vibrations.

Jiro can attach the connectors to her costume with speakers so that a concentrated sound burst from her heartbeat is allowed in one direction. However, this technique can be countered by using a louder sound source, such as Present Mic’s Quirk.

Earphone Jacks can emulate headphones as demonstrated by Kyoka plugging them into electronic devices to hear sound privately.

NAMED TECHNIQUES

Heartbeat Fuzz

( Hatobitohuazu Fazu). – Kyoka plugs in her earphones to these amplifying devices, which emit amplified sound waves based on her heartbeat. These waves are strong enough that they can shatter the ground.