The EIB174 is an additional vibrating pillow pad designed for use with alarms for the Hearing Impaired. It comes with 5m of cable and plugs into an alarm kit (EIB170RFAU) using the socket plug supplied. It provides additional warning where more than one vibrating pillow pad is needed. Plugs into the additional socket provided on the strobe unit for the Hearing Impaired. If an alarm on the system activates, the vibrating pillow pad will activate, awakening the occupant.