Fusicase Triangle Bluetooth4.0 Anti-loss Tracker,Key/Cell/Kids/Pets Finder,Voice Recording,Selfie Shutter for iPhone,iPad,Samsung,HTC,Nokia,Sony,LG,Motorola Andriod system Smartphone(Black) This tracker should be used with iTracing,an app/apk downloaded from App Store/Google Play and pair it to your phone via Bluetooth Anti-loss: chain the tracker with anything you may lose,press ALERT on your mobile app/apk to search the tracker within active distance Remote control: by remote control,you can turn on the cell phone record function or the remote camera shutter function for selfie self-portrait It can also provide a last seen pin-drop on map to help you recover your items and search your cars in parking site Compact and lightweight,handy like a key ring,and you can pair up to 8 trackers simultaneously to a phone