30 Days Return Fast Shipping Trusted Seller F01 Bluetooth Key Finder and Item Tracker Tags 4-Pack for Wallet Phone Luggage 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 10 months, eliminating the need for frequent battery replacement. Precise Search: Through the "Iltems" 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-Pack Color: ABS Material: Plastic Bluetooth version: 5.2 Auxiliary functions: Record lost location, rename item, customize item icon Connect: Bluetooth technology for close-range sensing and support for loss mode Alarm volume:Builtin buzzer ( 100 decibels) Battery: Replaceable CR2032 button battery Working temperature:-10?~65? Storage temperature: -10?~55 Working humidity: ?85% Storage humidity: ?75% Operating voltage: 2.0V-3.3V Transmit power: 4dbm Product size: 30*60*5mm Product weight: 9.6g Package size: 64*88*18mm / 250*90*20mm Package weight: 20.8g / 81g Package list: 4* Tracker SHIPPING POLICY: Free Worldwide Shipping RETURN POLICY: 30 Days returns! PAYMENTS: Safe and secure payement with PayPal! FEEDBACK: Customer satisfaction is very important to us. If you have any problem with your order, please contact us. We are here to assist you and resolve any issues that arise, so please give us a chance to do so prior to potentially posting any negative feedback. We are sure that we can provide a solution that makes you satisfied. CONTACT US: If you have any queries, please contact us via ebay. We usually respond within 24 hours on weekdays. Thank you for shopping with us!