Dual-System Compatible Built-In Tracker： This smart wallet features an integrated tracker, working seamlessly with both Android and iOS devices. Simply download the "Bseek" app from Google Play or App Store to set up a stable connection—no extra devices required for cross-platform use. Left-Behind Alert Protection： Never lose your wallet again! Receive instant notifications on your smartphone the moment you accidentally leave the wallet behind. The timely alert helps you retrieve your valuables quickly, avoiding loss of cards, cash, or personal items. Bidirectional Bluetooth Tracking & Rechargeable Design： Within Bluetooth range, your phone can locate the wallet anytime, and the wallet can also find your phone—perfect for misplaced devices. The built-in tracker is rechargeable via a standard USB-C port (hidden inside the wallet behind the ID window slot), ensuring long-lasting usage without frequent battery replacement. Carbon Fiber Material & Practical Storage： Crafted from lightweight carbon fiber, this wallet is thinner than standard leather wallets for easy carrying. It offers ample storage: 9 total card slots (including 4 external quick-access slots for frequently used cards) + a dedicated cash compartment. Keep credit cards, driver’s license, insurance cards, and cash organized—solving the hassle of cash-less new wallets. 4-Step Easy Setup & User-Friendly Design： Setting up is a breeze: first Download the Bseek app (includes a detailed tutorial); second Open the app and wait for "Bseek connected" prompt; third Press and hold the wallet’s power button (2 beeps + 2 blue flashes = power on; 1 beep + 3 flash = power off); fourth Enjoy the linked tracking function instantly. The tracker and charger are fully integrated, ensuring a sleek, non-bulky design. This is a smart Wallet with built-in tracker,it works with Apple Find My, Similar features with Apple air tags. Easily add the tracker walelt to the “Items”tab in the Apple Find My app to track and locate your wallet. It leverages the Apple Findmy network,it has no monthly subscription fees. It is for Ios users, it doesnot work with Android device.