Works with Apple Find My: Use the pre-installed Find My* app and add Card to the Items tab.*Note: Android devices are not supported Ultra-Loud Alarm: Despite being only 2.4mm thick, Card can sound an alarm so loud you can hear it even if it's covered Water-Resistant with Non-Replaceable and Non-Rechargeable Battery: Card can last up to 3 years and is safe even in the rain with its water-resistant coating Free Left-Behind Alerts: Avoid losing your belongings with instant alerts via the Find My appwith no added fee Find Your Phone in Silent Mode: Your phone rings even in Silent mode with just a double tap Share with Everyone: With the eufy Security app, you can let others know the location of your items too What's in the Box: SmartTrack Card, Metal Clip, and Quick Start Guide Works with Apple Find MyAdd SmartTrack Link to the Items tab on the Find My app, and locate it anywhere worldwide via your iPhone or iPad.Note: Apple Find My features only work if used with an iOS, iPadOS, or macOS