Injector

The Injector is an object mentioned in the Sonic the Hedgehog comic series and its spin-offs published by the Archie Comics. It is a mandatory device used on the recruits for the Egg Army.

Description
The Injector is a device used by Dr. Eggman to inject small implants into new recruits of the Egg Army. The Injector's implants are used to keep Eggman's subordinates in line and in contact with the doctor over short distances.