[For Apple MFI Certified]ACEFAST S1 button-type positioning device has passed for Apple MFI certification, ensuring compatibility and reliability with Apple devices. [Precise Global Positioning]Utilizes for Apple's Find My network for accurate item tracking worldwide, as long as an for Apple device connected to the internet is nearby. [Versatile Usage]Ideal for multiple scenarios including attaching to bags, keychains, bicycles, cars, and more, offering flexible tracking solutions. [Compact and Portable]Featuring a lanyard design, this small and lightweight device is easy to carry and attach to various items. [Long-lasting Battery]Equipped with a 230mAh CR2032 button battery, providing an impressive standby time of 10-12 months. Specifications: Material: ABS Dimensions: φ31 x 9.3mm Weight: 8g Battery: 230mAh CR2032 button battery (included) Standby Time: 10-12 months Bluetooth-Compatible Range: 15-20m Compatibility: for iPhone 8 and above (iOS 14.5 or later)