Introduction: When you want to find the lost keys or other things,just press the matching button on the remote control key and the key chain will sound, alarm will last for 4 seconds and then stop.In addition,turn up the key chain's switch to "ON" option,it will beep constantly,and push one button on the remote control key,key chain's will stop beep after matching. The battery can last for a long time, so with this key on you won't lose your important things. Specification: Color: random color Receiver Size: 4 x 2.6 x 1cm Transmitter Size: 5.8 x 3 x 1cm Control distance: 20m indoor, 20-30m in Space Working frequency: 433.92MHz Receiver battery: 1 x CR2032 (Battery is included) Transmitter battery: 1 x CR1632 (Battery is included) Product type: 1 transmitter to 4 receivers (total quantity: 5PCS) Instructions for use: 1. Press the ON / OFF button on the right side of the receiver to turn on before use. 2. Press the button on the transmitter and check the code with the receiver, when the B.B.B is heard and LED flash, you can find the location of items. 3. Beep time is about 0.5-2 seconds (different distances, different length of response time). When the finder is alarmed up to four seconds, it will automatically stop. Package Content: 1 * Transmitter 1 * 4 Receivers
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