CallToU IP55 Waterproof Nurse Call Buttons（Need to be paired with receiver to work） Color:2 Black Call buttons set the ringing time via

set the ringing time via your cell phone

When you set it at your door or window

hanging as a pendant

The working distance between the call button and the receiver is about 300 ft/90 m

when it is sometimes splashed with water does not affect the work at all

CallToU IP55 Waterproof Nurse Call Buttons（Need to be paired with receiver to work） Color:2 Black Call buttons set the ringing time viaNeed to be paired with receiver to work Nurse call button need to be paired with CallToU receiver then the unit can work. Smart wireless nurse call button allows a patient or an elderly to press a button requesting assistance Waterproof, light With lanyard, can wear around the neck Detail Wireless nurse call button transmitter for patients,the disable,the elderly or pregnant,receiver is not included,they can press the button to get timely care when