Key Finder with App:The Key Finder is connected to the phone via Bluetooth and Nut App. Size: 1.5inX1.5inX0.29in. It supports iOS and Android phones. With 4 nuts to attach keys, wallet, remote control, glasses, phones, dog collars or other easy to lose items. The key finder will help you not waste time looking for things. One Touch Find:Noise key finder helps you find misplaced items quickly; Double-click the key finder button on the app to ring your key search and find something quickly. Record Location Finder:Findthing app has map real-time location tracking and will save the last connected location to help you find it. so you can open the map in the app to speculate the approximate location of your missing items. Long Battery Life and Support:Each battery can be used for 10 months. Lifetime technical support. If you have any questions about Key Finder, please let us know. Customer Service:We are committed to providing you with premium products and providing you with impeccable customer service. Don't wait any longer and enjoy your ideal products today!