The Companion Emergency Response System is an emergency alert system designed for use by seniors or individuals with disabilities. This system includes a base unit and a waterproof pendant transmitter to be worn or carried by the user. When the user presses the button on the pendant, a signal is sent to the base unit and the base unit contacts friends, relatives, or emergency personel and establishes a two-way communication path. OPTIONS: The system may be leased with a monitoring service. When the system is activated, an operator at the monitoring service will contact family members or emergency services as directed and provide assurance to the user that help is en route. DIMENSIONS (HxLxW): The pendant transmitter is approximately 2 x 0.5 x 1 inches.