WiLock can alert you, turn on flash, or lock it when you are away from selected WiFi network or Bluetooth device. These features can be used as an anti theft indicator or connection warning indicator.Alert :This feature enables Emergency Alert sound (even in silent mode), which will be fired when phone goes away from selected WiFi router or Bluetooth device such as headphone.Flash:This feature enables Flash Light, when phone goes far from selected WiFi router or Bluetooth device such as headphone.Lock:This feature locks phone, when this phone goes far from selected WiFi router or Bluetooth device such as headphone.Beacon:This feature turns on WiFi listener beacon , when phone goes far from selected WiFi router or Bluetooth device such as headphone, beacon will continuously try to connect to the indicated hotspot.