The V.ALRT is designed to be paired within the V.ALRT app on your smartphone. The pin is negotiated between the button and the app and never shared. Please go into the V.ALRT app and pair your button with the “Manage Device” icon. Do not try to pair the button in your phone’s Bluetooth settings.
If your button is having trouble pairing, make sure it is turned on. Pressing the button for 10 seconds with turn it on. Pressing it for 45 seconds will return the button to default settings and power it off.