Pandora immobilizer relays use the 2.4 GHz frequency band encryption which can't be hacked.
An immobilizer relay is an important part of a car alarm system.
There are wired and wireless relays. The Pandora immobilizer relays use the 2.4 GHz frequency band encryption which can't be hacked. The relays work noiseless and in no way show their existense.
In order to unlock the engine and start off the owner has to carry around a small immobilizer tag which is included in the car alarm's or immobilizer's set. Most Pandora alarm systems and immobilizers allow connecting up to three relays.