User's Guide

Step 3: Power on unit 3 and unit 4, press and hold unit 3 and unit 4 Intercom Button for 1s, red

and blue light light flash alternately, then press Intercom button on either unit, the blue light

flashing. After pair successful, the blue light slows down.

Step 4: After pair finished, Short press Intercom button on unit1 or unit2, it will start intercom

between unit1 and unit2.

Step 5: After pair finished, double press Intercom button on unit2 or unit3, it will start intercom

between unit2 and unit3.

Step 6: After pair finished, Short press Intercom button on unit3 or unit4, it will start intercom

between unit3 and unit4.

During Intercom talking, short press Intercom button or Phone button to exit intercom mode.

Clear internal intercom pairing record:

Press and hold Volume+ and Volume- button for 2s, red light flash 3 times, then Clear all internal

intercom pairing records.