Trace And Find Anything Item: Attach mini simple thin black portable square key finder to anything and use "iSearching" tracker App to find your Item fast, you do not need to worry your item's lost. Connect "iSearching" Tracker App: iTag will connect the smart phone automayically when power on, if it shows "disconnected" on the APP, please click the "Connect" button to connect it again. Confirm Location And Record Lost History: Smart key finder device for men/women, you can choose Google map or baidu map to track the lost item. Location lost's function, when you pack your car, press the button on iTag, it will remarks your currecnt location on the map like a locator gps. Press the "Location list" and you will find where your vehicles is with easy tracking when you leave any big or underground packing lot. Find Your Lost Phone or Other Item: Use your iTag to locate your phone with ring, vibrate, and flash, even if the app is not running No need to replace key finder each year. Just replace battery yourself once a year for your finger to open the cap. Item included CR2032 button battery. Setting For Alert: 1. Double click the button on iTag to trigger the alert on the smart phone. 2.Click the red flash button to stop the phone alert. 3. Click "Alert" button, i Tage alerts, and click the "Stop Alert" will stop the alert from iTag. Item Name: Square Key Finder Main Material: ASB+Electronic Parts Main Color: Black Package Box Size:9.3 x 9.3 x 1.8cm / 3.66" x 3.66" x 0.71"(L * W * T) Package Include: 4 x Square Key Finder, 4 x Manual, 4 x CR2032 Button Battery, 4 x Sling Rope.