Features: Global Positioning: With the global positioning feature of the Airtag project, you can easily find your items anywhere in the world as long as there are Apple devices around.One-Click Call: No need to download any software, just open the search software connection on the Apple device, and you can use the device to emit a prompt sound to help you quickly find items.MFi Certification: The Airtag project has passed Apple's MFi certification, ensuring the quality and safety of the product.Ultra-Long Standby: The ultra-low power consumption design can maintain a standby time of up to 12 months, eliminating the need for frequent battery replacement.Precise Search: Through the "Items" tag of the Finding App, the built-in speaker of Finein Tag can play a sound to indicate the item's location, allowing you to find items at close range easily.Specification:Optional Model: 1-Pack / 4-PackOptional Color: White / BlackConnection: Apple Find My network for global positioning search Shell: ABS material, environmentally friendly and durable Bluetooth version: 5.2Battery: Replaceable CR2032 coin cell batteryBattery capacity: 230mAh Standby time: 6-12 months Sensor: Accelerometer Speaker: Built-in buzzer Sound: 60~70dB System Requirements and Compatibility: (1) Apple ID ; (2) iPhone and iPod touch models with iOS14.5 or later ; (3) iPad models with iPadOS 14.5 or later Product Size: 9.2*31mm; 9.2*35.5mm(with frame)Product Weight: 10g Package size: 90*65*16mm/182*130*16mmPackage weight: 18g/76gPackage list:4* Tracker