Features: 1.Quick Calling: When there is emergency, just push the call button, and the alert message will immediately send to the receiver. 2.Stable Signal: The working range can get up to 1000 meters in an open area, making sure that you will never loss a call in night. 3.Alerting Mode: Has 3 kinds of alarming modes, flashing and vibration, flashing and buzzer, flashing and vibration and buzzer. 4.Extensive Use: Can be widely applied in home, nursing home, hospital and so on, suits perfectly for the elderly, patient, etc. 5.Easy Carrying: Comes with a light weight and a compact size as well, ideal for both indoor and outdoor, safeguarding the safety. specification:Item Type: Caregiver Pager Watch Receiver Parameter: Operating Frequency 433.92MHz Charging Voltage: DC5V Working Voltage: DC3.7V Lithium Battery Model: 602030 Battery Capacity: 300mAh, included. Working Current: 10020mA in vibration and buzzer mode, 7510mA in vibration mode. Standby Current: 105mA Receive Sensitivity: -1072dBm Decoding: Learning Coding Waterproof Grade: IPX7 Working Temperature: -20~ 60 Button Launcher Parameter: Operating Frequency 433.92MHz Material: ABS Battery Type: 1 x 23A12V battery. Battery Capacity: 80mAh, included. Emission Current: 10mA3mA Standby Current: 1000m / 3280.84ft Keystrokes: 1000,000 times Waterproof Grade: IPX4 Working Temperature: -20 ~ 55 Single Key: Call PackageList:1 x Receiver 1 x Button 1 x Charging Cable 1 x User Manual