Feature 1Adjustable: The pager has 38 music tracks to choose from and 4 levels of volume adjustment, which can be adjusted according to your preference. 2Easy to Use: The transmitter and receiver of the pager can be paired at will, making it easy to use and highly penetrating. 3Wide Application: The pager can be applied to scenarios such as elderly pager, wireless doorbell, greeter, and hospital patient call. 4Remote Transmission: The pager can achieve ultra long distance signal transmission, 330 meters in open area and 50 meters through the wall. 5ABS Housing: The pager is made of ABS, and the buttons are small and lightweight, so it's easy to just press them.Specification: Item Type: Elderly Monitoring Call Button Material : ABSWireless Reception Distance:330m/1.82.7ft (open area)Wireless Frequency: 433MHZMode: 1 to 2Remote Control Built in Battery: 2x23A/60mAh alkaline batteryVoltage: 100-240V ---------- .wang-edit-text{ ------------ font-family:'Arial' !important; ---------- } ---------- .wang-edit-text table { ------------ border-top: 1px solid #000; ------------ border-left: 1px solid #000; ---------- } ---------- .wang-edit-text table td, ---------- .wang-edit-text table th { ------------ border-bottom: 1px solid #000; ------------ border-right: 1px solid #000; ------------ padding: 3px 5px; ---------- } ---------- .wang-edit-text table th { ------------ text-align: center; -------- }Package List:1xElderly Monitoring CallReceiver2xRemote Control1xInstruction