Convenient and ReliableIdeal for the elderly, children, disabled people, pregnant women or patients who need quick help, because the caregiver's nanny cannot always stay with the patient or disabled person, just press the phone button and you can get it without shouting "you" Prompt and thoughtful care. Can also be used as a doorbell. Long RangeUp to 400 meters in open areas (walls and other objects shorten the distance) and uses 16-bit encoding to eliminate interference from other devices, delivering the performance you need to work virtually anywhere in the home. Easy to PlaceThe waterproof transmitter comes with a lanyard, which can be worn as a pendant or placed beside the bed. The receiver can be hung on a wall by a cord, placed on a table or in the caregiver's pocket. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store