The Unication UniMAX Alert and Ring Tone Amplifier is a device designed for users who may be asleep or away from their pager or cellular phone and still need to be alerted to an emergency situation. With no electrical contacts, the amplifier is activated by sensing the pager or cellular phone audio alert. The UniMAX features ten loud and clear audible tone alerts and a flashing LED to indicate an alert was received. Once alerted, the amplifier alert tone volume will increase incrementally until maximum volume is achieved. It is compatible with most pagers and cellular phones.