The CA-PX Wireless Vibrating Personal Receiver/Pager is a wearable receiver/pager accessory for the CentralAlert notification system that can be used to notify an individual by vibration, sound and/or flashing icons. It has a built-in vibrator, speaker, flasher and flashing icons for alerting deaf/blind and hard of hearing users. Product Features: - Alert types include the telephone, cell phone, door sensor, baby cry, audio, motion, NOAA and SOS transmitters - Last alert event recall function - Unique vibration pattern training help users recognize/learn different vibration patterns by feel - 2.4GHz Smart-Code technology - Up to 200 ft. operating range - Includes 3 AA NiMH rechargeable batteries & AC adapter - Dimensions: 3.75" x 4.5" x 1" - One year manufacturer's limited warranty