The Apple AirTag is a compact tracking device designed to help you keep tabs on your personal belongings. It utilizes a combination of Bluetooth for proximity detection and a specialized U1 chip, which enables Precision Finding on iPhone 11 and newer models to guide you directly to your item's location. A built-in speaker allows you to play a sound to locate the tag, while an NFC interface lets others tap the device to enter Lost Mode and provide their contact information. Measuring just 31.9 mm in diameter and 8 mm in height, this 11-gram tracker is small enough to attach to keys or slip into a wallet. Its IP67 rating ensures it remains resistant to dust and can withstand being submerged in up to one meter of water for 30 minutes, making it reliable in various environments. The device operates in temperatures ranging from -20° to 60° C and is powered by a user-replaceable CR2032 coin cell battery, so you can easily maintain it over time. To get started, you will need an iPhone, iPod touch, or iPad running iOS or iPadOS 14.5 or later. The construction reflects a commitment to environmental safety, using mercury-free and BFR-free materials, along with 100% recycled tin in the main logic board solder.