1. Set: one transmitter to four receivers 2. Remote control distance:8~10M 3. Operated by CR2032 batteries Method of use:Turn the receiver's power switch "ON"Put the receiver together with your stuffWhen you want to find your stuff, press and hold the specific button that relate to the specific receiver with your stuff for 2 secondsThe specific receiver will come out the B.B.B sound and is flashing red LED light for a few secondsFind your stuffSpecification: 1. International advanced power energy saving system2. High precision single chip microcomputer design3. Small shape, wireless sender and receiver code matching function4. Wireless control distance:8~10M5. Both transimtter and receivers will be at rest waiting state untill you press the button6. Operated by CR2032 batteries7. Power voltage: 3V8. Capacity of battery: 180mAh9. Power consumption: 2uA

2013 Shenzhen remote key finder