Bluetooth Wireless Key FinderBluetooth Key Finder are small gadgets you attach to important items you’re worried about losing (such as keys or a bag) that let you use an app on your smartphone to locate those items—usually with an audible tone on the tracker and a map on your phone’s screen. The best Bluetooth tracker for most people is the second-generation R633. The Key finder also has an alarm that’s easier to hear than the alarms on other trackers,Website: , and a crowd-finding feature that lets other users of the key finder smartphone app help you locate items that are out of Bluetooth range. Taken together, this means you’re more likely to find your stuff if it’s lost with key finder than with any other tracker.Specification of Bluetooth Anti LostCompatible SystemiOS 7.0 and above;  Android 4.3 and above;Applicable modes:- iPhone4S, iPhone5/5S/5C, iPhone6/6plus,iPad3/4/5,iPad mini;- Samsung Galaxy S4, S5, Note3, Note4.- Mi2S/3(after upgrade), Mi4- Huawei B199/8816/Glory3c- SONY XPERIA Z2;  HTC DESIRE816; OPPO Find7; LG NEXUS 5  (on going updates)- Other phones we do not 100% gurantee it\'s compatible with this tag.Communication system:Bluetooth ver 4.0 (Bluetooth Low Energy)Accessories:Manual, steel ringSize/Weight31*5.4mm / 5gCommunication ragne:0-30 meters      (Depending on environment and the software setting)PowerCR2016 battery, Power consumption: 5uAStandby time:24 monthsSoftware updateYesCertificationCE&ROHS&FCCInstallation of Bluetooth Lost Item FinderDownload and install the app from Apple App Store or Google Play by searching \'SwalleKeyFinder’ Press the button 3 seconds to activate Swalle when use it for the first time. Buzzer would beep and blue LED indicator will flash three times. Run the app.Tap the Scan icon in the app to add a new Swalle.The app will pair and connect with Swalle. Rename the Swalle in the app.OEM and ODM service:-Printing your logo on the product,design your app,package box and user manual with your company logo.- Product design, including structure and electronics (functions development)- Prototyping and testing for concept ideas - Mold design and production - Injection molding of components - Product assembly- Surface treatment and logo printing