Compared to other similar products on the market, our smart tracker connects to your phone via Bluetooth. You can view the exact location through the app. This product helps you locate keys, wallets, remote controls, or purses accurately and quickly.The practical smart tracker features a lightweight and compact design, making it portable and versatile. It can easily be carried in your backpack.It is made of ABS material and comes with a built-in CR2032 button battery that lasts up to 12 months and is easily replaceable. Simply press the Call button in the app or the Beep button on your phone, and the Bluetooth-enabled finder will beep to guide you to your item. If you misplace your phone, double-click the button on the connected tracker, and your phone will ring even if it is on silent mode.The product measures 3.8 cm in length, 3.8 cm in width, and 1 cm in height. It features a metal ring design, allowing it to be conveniently attached to a keychain. When connected to the mobile app via Bluetooth, you can use the apps self-timer function to take pictures wirelessly. Double-click the device's button to trigger the camera in the app.If the item goes out of range (up to 25 meters), both your smartphone and the key finder will sound an alert. This helps prevent leaving items behind. If your item is lost, the app automatically records the last known location where the connection was lost, helping you identify the approximate location on the app map to recover your item.Item Name: Smart Tracker Material: ABS Power Supply: CR2032 Button Battery (Included) Sound Reminder Decibel: 80dB Bluetooth Version: 5.0 Usage Distance: 25m Compatible Systems: iOS 11.0 and above, Android 8.0 and above Suitable for: Phone, Keys, Bag, etc. Features: Anti-lost, Two-Way Alarm, Selfie Function Size Details: L: 3.8 cm / 1.5 in, W: 3.8 cm / 1.5 in, H: 1 cm / 0.39 in (Approx.)Notes: Due to differences in lighting and screen settings, the item's color may vary slightly from the images. Please allow slight variations in dimensions due to manual measurement.Package Includes: 1 x Smart Tracker 1 x Metal Ring