【Multifunction】Anti-loss alarm, GPS tracking device, selfie remote control. Works as a remote shutter for selfies; you can remotely control your smartphone's camera by pressing the search button. 【Two-Way Notification】Attach this wireless tracker to anything we always forget, like keys or wallets, and keep track of them. The 2-way key finder will allow you to track lost items or be notified when they are lost.They are out of range with a ring light or flash. 【Find the Keyring】This smart tracker is compact, lightweight, and easy to carry like a keyring on your children's schoolbag or attached to your pet's collar. The real-time locator effectively prevents your children and pets from getting lost. It provides a last-minute pin visible on the map via the app to help you retrieve your belongings and find your car in the parking lot. 【GPS Key Tracker】This key locator uses BT 4.0 technology to connect to Android, iOS, iPad, and other smartphones. View your car keys, luggage, wallet, dogs, and cats on the app to help you find them accurately. 【Remote Control App】Download the free app "isearching" or "Dycoo TrackerPA" and pair it with your smartphone. When you press the button on the remote control, the receiver will beep, and you can hear the GPS tracker's voice within a 22.9 m radius.