Abstract: A credit card sized remote control transmitter comprising a complete independent remote control transmitter with an internal power supply, user operable switches, a system security encoder circuit, a transmitting circuit, an antenna, and printed circuit board combined into a transmitter embedded into a card that is the size of a normal credit card or smaller and thin enough to be easily and conveniently stored and carried in a user's wallet, purse, or garment pocket. The transmitter can be easily, conveniently, and comfortably stored and carried as an emergency or convenience remote control transmitter in case the primary remote control transmitter fails, is lost, is misplaced, or is inaccessibly locked inside the vehicle. Additionally, the transmitter optionally comprises a mechanical key for any emergency or convenience operation of any locking mechanism.