The casaBEACON app is launched when an iBeacon is received from a nearby casaBEACON compatible real estate sign. No casaBEACON screen is shown. casaBEACON simply creates a user notification within the iOS Notification Center providing a short description of of the real estate listing supported by the sign. Users click on the notification to see listing details within another real estate app or real estate web page. casaBEACON signs include a powerful "whip" style antenna and support iBeacon reception up to 100 m (300 feet) away. Users can enable or disable notifications within the Notification Center for casaBEACON to opt in or out of receiving casaBEACON notifications. Contact Deviceworx for details on casaBEACON compatible real estate signs.