Abstract: An electronic alert apparatus comprises a radio frequency receiver configured to receive and identify an emergency message preamble that indicates an impending transmission of an emergency message sent at a first data rate and an emergency message addressed to a shared device address sent at a second data rate. The electronic alert apparatus also includes a processor operatively connected to the radio frequency receiver and configured to decode the encoded emergency message. A memory is operatively connected to the processor and configured to store the decoded emergency message. A display is operatively connected to the controller and configured to present the decoded emergency message. A power source is configured to supply electrical power to the processor, and a housing is configured to at least partially enclose the processor, the memory, and the power source.

Abstract: A wireless control system is provided for remotely controlling various modules of a spa. The control system comprises a wireless interface for receiving a combination of communication signals containing control data and BLUETOOTH signals from a remote wireless device. The communication signals contain at least control data for controlling the various modules of the spa and the BLUETOOTH signals contain media data such as streaming audio data. The communication signals can be transmitted using Wi-Fi, GSM or CDMA protocols. The control system further comprises a wired interface connected to the various modules of the spa and in communication with the wireless interface. The wired interface controls the various modules of the spa in response to the control data.