What is the length of the cable that comes with SGM-02?

SGM02 comes with 2 cables- one for camera and one for mobile. For camera use the spiral cable and for mobile, use the straight cable. The mobile phone cable is 1ft long, which is sufficient enough for a highly directional mic like shotgun mic  as it captures the audio from the front only.

What should I do if my pairing gets disturbed?

If the pairing gets disturbed- long press the frequency pairing button of the transmitter for 2sec till the power light starts flashing. Now long press the frequency pairing button of the receiver for 2sec, the signal light flashes for three times. Once the flashing stops, press the mic pairing button once,  the pairing lights will remain stable and will stay turned on.