the nurse call button to sendwireless signalto pager and alert carer assistance is required.Never miss a call from the loved one.No matter if you are looking for simple bed alarms or emergency alert system for elderly or this is anaffordable and reliablesolution. PORTABLE CAREGIVER PAGER: This wireless pager system allows caregiver or care taker the freedom to attend other tasks while receiving alert from , seniors, elderly and loved . Makes caring for your loved one easier. With a simple touch of the SOS call button to help and assistance from caregiver. The signal coverage between the call button to pager system is up to 500 feet. The wireless signal carriesa 2-3 floors easily.Never miss a call from your loved one.This feature is especially beneficial for families with spacious living arrangements, providing comprehensive coverage for those at risk of falls or needing extra assistance. Receiver button gray and white models are sent randomly,Specified color is not accepted Colour:White Material:ABS Package Contents: 1 x receiver 2 x transmitter (3 AAA batteries are not included in the shipment) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.