Do you have such troubles? Where is my keys?Where is my wallet?Where is my cat?Where is my bag?Where is my ......? Founded in 2013, Technology is the Creator of premium anti-loss and find brand series smarts, a true leader in smart tracking technologies, we are a dedicated team focusing on solving small issues in your everyday life using a combination of bluetooth, Wi-fi and mobile internet technologies in both cutting edge software and hardware technologies and solutions, to provide our customers the best user experience, just one piece of will give you Peace of Mind. The key finder with key chain can be installed on backpacks, keys and everything that can be hung. You can use double-sided tape to paste on the remote control or card. Thin enough to put it directly in your wallet. 4 Package includes---------1 Package includes 4 * Key Finder - Findthing-----1 * Key Finder - 2 * Double-sided tape---------1 * Double-sided tape 1 * Manual----------------------1 * Manual App functions are all free to useFull functioningSmall and portableLong lifeReplaceable batterySupports for: iOS (iPhone/iPad) and (Phone/Pad)Bluetooth: 4.0 or aboveRange: Indoor 32.81~65.62 feet/10-20m; Outdoor 98.3~164.04 feet/30-50m Use the app to ring your key finder if nearby and you can easily find them. Share the device with your family or friends so they can manage it. It can be shared to 20 friends at most. When you open the app and connect with , the app will record the connected location, this will help to remember where the app has connected with . A Brand that Focus on Research and Development of Key Finder Findthing- Bluetooth Smart Key Finder can help you! Wide Range of Applications Ring Your Things Sharing Location History