*Explanation of ID code *
These units have 3 ID codes (ID1, ID2, and ID3) that are used to communicate from the main unit to the Wireless Receiver Box; the blue light indicates that you have communications to the wireless box. These are used in case there is another unit in the area. This will allow you to set them to different ID codes and will keep them from interfering with each other.
Explanation of Channels
There are three Channels that you can set the unit to. The purpose of these Channels is if you have local interference, you can change the channel to eliminate the interference.
Press and hold SOUND button on the remote control to change channel. The channel change is reflected on the units display as CH0, CH1 or CH2. The Channel setting will not affect the ability of the Main unit and the Wireless receiver Box to communicate. The Channel settings do not relate to or affect the ID Codes.
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