SYNLETT Wireless Calling and Alarm System is designed for restaurants, café, retirement home, long term care facility, hospital or small care facilities, and allows caregivers or service staff to monitor calls and alerts. A number of different wireless devices can be programmed into the system, including basic call buttons, call light system, panic button system, window/door exit alarms, PIR motion sensors, and caregiver waist pager. Simply press the call button/beeper to send out signal to the pager monitor to call out for service. The monitoring pager unit rings out with a number call out or an alert tone of your choice when receiving signal from call button. NOTE: This offer contains 1 Monitoring Unit, 20 Call Buttons, 1 Clear Call Button and 1 Pager.