Features 1、WATERPROOF DESIGN: The wireless caregiver call button features a slim, waterproof design so it can be used outdoors without worrying about getting wet from coffee or tea. 2、REMOTE RECEIVING: The pager call button can be used up to 330 meters, 50 meters through a wall, and 1 to 3 floors of open space. 3、APPLICATIONS: Intelligent call system is widely used for doorbells, senior pagers, emergency buttons and so on. 4、PREVENT LOSS: The Wireless Caregiver Call Button can be configured with a tether to be used as a pager for seniors, making it less likely to be lost. 5、EXQUISITE APPEARANCE: The wireless pager call button is beautifully crafted, comfortable to touch and comes in classic black color. Specification Item Type: Wireless Call Buttons Material: ABS Wireless Reception Distance: Approx.330meters / 1082ft (Open Area) Wireless Frequency: 433MHZ Package List 1 x Wireless Call Buttons