Item Type: Elderly Monitoring Call Button _x000D_ Material: ABS_x000D_ Wireless Reception Distance: Approx. 330m / 1.82.7ft (open area)_x000D_ Wireless Frequency: 433MHZ_x000D_ Mode: 1 to 2_x000D_ Remote Control Built in Battery: 2 x 23A/60mAh alkaline battery_x000D_ Voltage: 100-240V1Adjustable: 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.1 x Elderly Monitoring CallReceiver 2 x Remote Control 1 x Instruction