Bluetooth 4.0 Smart Wireless SensorBug - Low Profile, 100 meter Line of Sight performance. Included with the purchase is a free BlueSense Apple iOS environmental awareness application that allows you to manage all of your BLEhome Bluetooth 4.0 Low Energy (Bluetooth Smart) wireless sensors and home automation devices. It provides a user friendly and interactive way to monitor (via alerts), configure, and control your surroundings. Configurable using BlueSense iOS to Support iBeacon, Alt Beacon, or Eddystone protocols. This is available free from Apple iTunes. Compatibility: Requires iOS 7 or later and BT4.0. Compatible with iPhone 4S, iPhone 5, iPhone 5c, iPhone 5s, iPad Wi-Fi (3rd generation), iPad Wi-Fi + Cellular (3rd generation), iPad Wi-Fi (4th generation), iPad Wi-Fi + Cellular (4th generation), iPad mini Wi-Fi, iPad mini Wi-Fi + Cellular, iPad Air, iPad Air Wi-Fi + Cellular, iPad mini with Retina display, iPad mini with Retina display Wi-Fi + Cellular, and iPod touch (5th generation). The website link to free iOS 7 app:https://itunes.apple.com/us/app/bluesense/id629235174?mt=8 Instructions and download link to free iOS application and interface specification at www.BLEhome.com.