works both as wireless doorbell and intercom

works both as wireless doorbell and intercom

The Transmitter is driven by One-Button-Press Kinetic Energy.

The patient / disabled / elderly can press on the CALL button to call, press the CANCEL button to cancel.  

works both as doorbell and interphone

works both as doorbell and interphone

works both as doorbell and interphone

wireless calling system 2 keys waiter call button

wireless calling system 2 keys waiter call button

wireless calling system 2 keys waiter call button

guest calling button for ordering meal or call waiter

guest calling button for ordering meal or call waiter