【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)