Feature:1. ONE TOUCH CALL: If your family member is in an emergency, press the call button and an alert message will be sent to the recipient immediately.2. STABLE SIGNAL: The working range of this caregiber pager can get up to 100 meters in an open area, making sure that you will never loss a call in night.3. WATERPROOF: This alert button has IPX7 waterproof performance, and the watch has IPX6 waterproof level you do not have to worry about food or water splashing on it, it is also perfect for use in the bathroom.4. PORTABLE DESIGN: Lanyard design, convenient for the elderly or patients to put it around the neck, light weight, small size, which is suitable for indoor and outdoor use, to ensure safety.5. ALARM MODES: There are several alarm modes, which are light flashing and vibration, flashing and buzzer, flashing and vibration and buzzer.Specification:Item Type: Caregiver PagerWatch Receiver Parameter:Operating Frequency 433.92MHzLithium Battery Model: 602030Battery Capacity: 300mAh, included. Working Current: 10020mA in vibration and buzzer mode, 7510mA in vibration mode. Standby Current: 105mAReceive Sensitivity: -1072dBmDecoding: Learning CodingWaterproof Grade: IPX7Working Temperature: -20~ 60Button Launcher Parameter:Operating Frequency 433.92MHzMaterial: ABSBattery Type: 1 x 23A12V battery. Battery Capacity: 75mAh, included. Emission Current: 10mA3mAStandby Current: <1uAOpen Distance: Approx. >100m / 328.1ftKeystrokes: 1000,000 timesWaterproof Grade: IPX6Working Temperature: -20 ~ 55Single Key: SOS.Package List:1 x Receiver1 x Button1 x Charging Cable1 x User Manual