Proximity Marketing is a term that typically describes the communication of digitally based content to mobile devices within a particular range or proximity. Our iSender device broadcasts your message using a combination of Bluetooth & WiFi, and typical ranges can vary around 100 meters dependent on line of sight. The Proximity Marketing term can also be used to include other technologies like NFC (Near Field Communication) or iBeacons, which are small close range Bluetooth based radios that are used to push alerts to smart phones if that have a pre-installed mobile app. Our iSender device sends content to smartphones and does not require an app. The process starts with a push alert message (or permission request), that anyone with a Bluetooth-enabled device will receive.