This product comes with a dedicated app, which can be downloaded using the instructions provided in the user manual. It supports both and iOS systems. That said, we recommend using an iPhone for the best performance. This device uses Ultra-Wideband (UWB) technology for highly accurate location tracking, and relies on nearby Apple network devices within about 30 meters to function properly. Regarding product startup: There is a layer of plastic insulating sheet between the product and the battery. When you receive the product and open the package, you can see this insulating sheet. Once you remove it and hear a "di" sound, the product is already in the startup state and can be connected to it normally with a mobile phone. Just as shown in the main image video. Important: Most usage issues reported recently were caused by a lack of nearby Apple network coverage. If you're in an area without Apple devices, the may not work as expected. Please make sure to read the product description carefully before placing your order. If you encounter any issues, assistance is always available through the official support channel. The device includes a CR2032 coin battery that is already installed. No need to open or replace it when you receive the product. It has a long lifespan and can last up to one year under normal usage. When replacement is needed, simply open the back cover to change the battery. Please note: This version does not include magnetic parts. A magnetic version is currently in developmentstay tuned for future updates! MyTag is a supereasy way to keep track of your stuff.Attach one to your keys, slip another in your backpack. And just like that, theyre on your radar in the tag app,where you can also track down your devices and keep up with friends and family. Let the search party begin. Sharewith up to five people. So items that everyone uses like an umbrella, a bike, or the family car keys can be tracked by friends and family. Whats in the Box F6 Bluetooth (x1)User ManualStylish LanyardColor Retail Box Ready to use right out of the box no hidden fees, no subscriptions, and 100% free for lifetime usage.Ideal for Tracking: Keys Backpacks & Luggage Pets & Pet Collars Vehicles & Bicycles Key Features Summary Model: F6Battery: CR2032 (1 year usage)Material: ABSConnection: Bluetooth UWBDistance: Global UnlimitedAlert Modes: Buzzer + LEDPlatform: / iOSWeight: 0.3 ozSize: 1.3 * 1.3 * 0.3 in - Lifetime Free Use No SIM Card Needed User Manual Battery Secure Loop 1 Elma CarinaCustomer ReviewVery good article for carsShare: Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive. Fields with an asterisk * are required ** 01 02 03 04 05 06 07 08 09 10 11 12 01020304050607080910111213141516171819202122232425262728293031