Video: The use of micro-grain rice chips implanted in the hand

Rice-sized micro-chips allow users to open doors, cars, equipment or use them as tickets on public transport.

Micro chips are about the size of a grain of rice.

Micro-sized chips with a grain size can only contain a limited access code and information. This tiny device is usually injected between the thumb and index finger, using a thick needle like needles used to sew the body.

Each micro chip uses proximity communication technology to open doors, vehicles or devices.

Developers looking to create micro-chip models can store multiple access codes and even make payment transactions.