[ Wireless Guard ] 1 Receiver 1 Call Button. Allow caregivers and residents to be free while ensuring that help is still available at the touch of a button, ideal for elderly, seniors, patients, disabled [ Easy to Carry ] The receiver can be moved with the caregiver and the open area working range is 500+ ft, you can take it to the bedroom, kitchen or yard. The call button can also be hung around the neck of the person with a neck strap who needs help like a pendant or secured with a bracket or double sticker [ Smart Ringtones ] The receiver of caregiver pager has 55 ringing tones to choose from and 5 level adjustable volume from 0db to 110db. Easy use by plug the receiver into an electrical outlet.