Features: 1.[Smart Ringtone] The wireless caregiver pager has 38 music to choose from and supports 4 levels of volume adjustment to meet your needs for different scenarios. 2.[Easy Pairing] Wireless pager transmitter and receiver can be paired at will, one for two work. Perfect for families, nursing homes, hospitals for the elderly, patients, etc. 3.[Multi Application] The intelligent calling system can be applied to scenarios such as elderly pager, wireless doorbell, greeter, one touch call for hospital patients. 4.[Wide Range Reception] Wireless pager call system provides 330 meters wide range reception in open space, support 50m/164ft through the wall reception, 1 to 3 floors are loud. 5.[Small And Portable] The pager receiver can be moved with the caregiver, you can take it to the bedroom, kitchen or yard. And call button can be hung around the neck of the person who needs help. specification:Item Type: Wireless Caregiver Pager Material: ABS Wireless Reception Distance: Approx. 330m/361yd (Open Area) Wireless Frequency: 433MHZ Mode: One for Two Built in Li Polymer Battery: 1 x 1000mAh (Receiver), 2 x 23A Battery, 60mAh (Transmitter) PackageList:1 x Host 2 x Call Button 1 x Instruction Manual 1 x Charging Cable