Rice grain-sized earphone may have been used to cheat on TOEIC English test
The earphone was confiscated from a suspected test cheater, along with a pendant-shaped relay device and a roughly 40-minute video explaining how to use the equipment, according to the sources.
The suspected cheater was one of 10 Chinese test takers at the same test venue as Wang Likun, a 27-year-old graduate student at Kyoto University who has been arrested in the case.
The earphone, which was several millimeters in size, was designed to be removed from the ear using a magnetic stick. The relay device was for connecting to a smartphone.
The international crimes division of Tokyo's Metropolitan Police Department believes that the equipment was provided by a Chinese business offering cheating services.
The video explained in Chinese-language audio and subtitles how to use the relay device, including linking it to smartphones via Bluetooth.
In May, Wang was arrested at the test venue. He had a small microphone about 3 to 4 centimeters long hidden in his mask.
Wang has been served another arrest warrant for allegedly impersonating another person to take a TOEIC test in Tokyo's Nerima Ward on March 1. Fourteen Chinese nationals applied for the same day's TOEIC test using the same address in Tokyo's Nakano Ward as Wang.
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