within certain scope.
Steps:
1) Press the power key shortly, then the red LED will flash; about 2s later, the red LED will be off
and the blue LED will flash once every 2s, indicating that the main unit has been activated.
2) Hold the A key about 3s, then the red and blue LEDs will flash alternately, indicating having
entered the pairing state; press shortly the A key of either of the two units, then the red LED will
be off and the blue LED will flash once every 2s, indicating that the main unit is searching other
Bluetooth main unit, about 5s later, the red LED of the other main unit will be off, indicating that
the two main units have been paired; in such case, press the A key of either of the two units to
realize intercom.
3) Use the method described in 2) above to respectively pair two groups of main units.
4) Respectively use any main unit of the two groups for pairing. And then hold the B key of the
two main units about 3s, then the red and blue LEDs will flash alternately, indicating having
entered the pairing state; press shortly the B key of either of the two units, then the red LED will
be off and the blue LED will flash once every 2s, indicating that the main unit is searching other
Bluetooth main unit, about 5s later, the red LED of the other main unit will be off, indicating that
the two main units have been paired; in such case, press the B key of either of the two units to
realize intercom. (Note: This pairing method is the same as that described in 2) above with only
different keys).
5) Respectively press the A key of the rest two main units; about 5s later, enter the group intercom
state; in that case, the four main units can realize intercom at the same time.
Notice for 4-party Intercom:
1. In case of two persons, it is recommended to pair “A” and “A” (respectively pairing mobile
phones).
2. In case of three persons, it is recommended to pair Unit 1“A” and Unit 2“A” and Unit 2“B” and
Unit 3“A” (Unit 1 and Unit 3 may respectively pair mobile phones).
3. In case of four persons, it is recommended to pair Unit 1“A” and Unit 2“A”, Unit 2“B” and
Unit 3“B”, Unit 3“A” and Unit 4“A” (Unit 1 and Unit 4 may pair mobile phones respectively)
Note:
For re-pairing, be sure to remove the pairing records before; to achieve this, hold A and B
keys at the same time until the red LED flashes quickly.
