This app use iPhone(iPhone 4s,iPhone 5,iPhone 5c,iPhone 5s,iPhone 6,iPhone 6 Plus)/iPads(iPad 3，iPad 4,iPad Air ,iPad Air 2 ,iPad mini,iPad mini 2,iPad mini 3) bluetooth communication with Zip Key Finder ble hardware products(R616,R621), to achieve the two sides to alarm, data transmission, remote control picture, remote video, etc.