1. Press the button for 3 seconds, the finder will turn on after hearing 3 beeps and the indicator will flash10 seconds,3)Use phone's bluetooth to connect the tracker 4)Press button with 3 sec and hearing a long beep, the device turn off. 2. Two-Way Anti-lost Tracker:The smart key tracker is a gadget to alert you when you are about to forget your belongings. your phone and key finder will both ring to alert you once disconnected,Your phone would alarm when the phone missing by double pressing the tracker's button,or you can check the map location or clicking the alarm on the App after missing the anti-loss device,the finder will sound,too One phone can link to several trackers. 3. The key tracking device is powered with super long standby time over 6 months and can be replaced easily for long-term use. Delicate and elegant appearance makes it look like an art of pieces. 4. Widely to Use: The key item locator is a anti-lost alarm reminder to help you search and locate items you always misplaced, you can hang on the finder toyour phones, keys, bags, umbrellas, pets, dogs,cats, wallets, purses, luggage,dogandcat pet collar and other important items, convenient for you to find them quickly and easily, bringing a lot of convenience and help you avoid any losses to your life The tracking range is about 90 feet. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.