Global Positioning: All over the world, this device is surrounded by (for iPhone, for iPad and for Mac), and you can use the Find My network to locate items Fast Bluetooth Signal: It will send out a safe Bluetooth signal in two seconds, allowing nearby iOS devices to detect and receive this signal and upload it for Apple's iCloud server. Users can use the Find My software to see its location on the map Notify When Left Behind: Whether it is a wallet, keys or other personal items, once the items are left behind, the mobile phone will receive a notification to remind you to find them back to avoid loss Widely Use: It is widely used for luggage, wallets, suitcases, bags, puppies and more Easy to Carry: Small in size, it's more convenient to store it in your pocket and carry Practical Gift: It is a perfect gift for aging parents, forgetful friends and more Specification: MFi PPID: 433324-296043 APP: Find My Battery capacity: 225mAh (CR2032) Buzzer sound level/frequency: 80dB/40+1.0KHZ Supported operating system: iOS 14.5, for iPadOS 14.5, for MacOS 12.5 Material: ABS Package included: 1 x Smart Tracker 1 x English and Chinese User Manual Other things not included