Specification: Item Type: Wireless Caregiver Call Button Material: ABS Wireless Reception Distance: Approx. 330m/1082.7ft (Open Area) Wireless Frequency: 433MHZ Built in Battery Specification: 60mAh 23A Battery x 5 Package List: 5 x Wireless Caregiver Call Button [WIDE APPLICATION] - The wireless caregiver call button is comfortable to touch and widely used as a doorbell, elderly pager, panic button, etc. [LONG DISTANCE SIGNAL RECEPTION] - The wireless caregiver call button receives 330m/1082.7ft in the open space, 50m/164.0ft through the wall 1-3 floors are ringing. [WITH A LANYARD] - The caregiver pager call button is configured with a lanyard, which can be used as an elderly pager and is not easy to lose. [WATERPROOF DESIGN] - The wireless pager call button is built with a large silicone pad and has undergone a large number of full-body waterproof experiments, with excellent waterproof effect. [EXQUISITE APPEARANCE] - The call button is finely crafted with beautiful paintwork, black plastic shell with black silicone and white font screen printing. [WIDE APPLICATION] - The wireless caregiver call button is comfortable to touch and widely used as a doorbell, elderly pager, panic button, etc. [LONG DISTANCE SIGNAL RECEPTION] - The wireless caregiver call button receives 330m/1082.7ft in the open space, 50m/164.0ft through the wall 1-3 floors are ringing. [WITH A LANYARD] - The caregiver pager call button is configured with a lanyard, which can be used as an elderly pager and is not easy to lose. [WATERPROOF DESIGN] - The wireless pager call button is built with a large silicone pad and has undergone a large number of full-body waterproof experiments, with excellent waterproof effect. [EXQUISITE APPEARANCE] - The call button is finely crafted with beautiful paintwork, black plastic shell with black silicone and white font screen printing.