A private tutor hatched an elaborate plan involving FaceTime and skin-colored Bluetooth earpieces to help Chinese students cheat at English, math, physics and chemistry exams …

Channel NewsAsia (via Gizmodo) explained how the scheme worked.

The students received the calls on phones with a Bluetooth connection to a skin-colored earpiece.

At the tuition centre, the trio would scramble to find answers to the questions, then call each of the six students and read the answers to them.

The tutor had been charging a total of $9000 to guarantee the students an exam pass.

The site reports that the scheme was uncovered when an exam invigilator heard sound from one of the earpieces.

Tan Jia Yan pleaded guilty to 27 counts of cheating.

He was taken aside after the exam and asked to remove his vest, under which a mobile phone was found. A Bluetooth device and a skin-coloured ear piece were also found on him.

FaceTime has seen some rather more positive forms of unusual use. Back in February, it was credited with saving a woman’s life, and it is also used in hospital neonatal ICU to help parents bond with very ill babies.