Product Review

Expandable
Our wireless contact sensor are expandable,you can add more accessories such as receivers,contact sensor and motion sensor as you like,just following the pairing instruction to make them paired before using is fine

Pairing Instruction
1)Select a desired music for one sensor by pressing the music control button
2)Set receiver into pairing mode by pressing the volume button on the receiver for 7 seconds until hear "ding" with light flashes to get into pairing mode
It will exit the pairing mode automatically if it doesn't get signal from sensor in 5 seconds
3)When the receiver get into pairing mode,you should immediately trigger the sensor in 5 seconds by separating the two parts of contact sensor.
You will hear the music you selected which mean your operation is successful.