Find your keys with your phone With a press of a button on the app, it will ring your rtriv'r Take a selfie Rtrivr also works as a camera remote for your phone Works only in camera feature built into the app Attach the rtriv'r key finder to your keys or other valuables and you'll be able to locate them by making the rtriv'r beep using the free mobile app If out of range, the last seen location will be shown on a map you can also make your phone ring using rtriv'r â to locate it 1. Workâ withâ bluetoothâ 4.0 low energyâ readyâ smartphone, phoneâ with iosâ 7.0â andâ androidâ 4.4â orâ above 2. Freeâ appâ supports iosâ andâ android 3. Dimensions: 38*38*9mm 4. Indicator: blueâ led 5. Buzzer:â 80db 6. Workingâ distance:â 0-50â meters 7. Workingâ time: disconnectedâ butâ canâ beâ foundâ byâ phone: upâ toâ 2â years Connectedâ with the phone: upâ toâ 1â year (continualâ beep of alarm has impactâ on workingâ time) 8. Battery:â cr2032â buttonâ battery, replaceable 9. Colors:â white/black/pink/orange/blue/green