Use the following steps to layer BK-3 TONES using the DUAL mode:

1. First select your primary/main TONE.

2. Press the DUAL button so it is lit.

NOTE: This will activate the DUAL mode and you will now hear a second TONE layered with the first TONE. The following steps will show how to select a different TONE for the layered DUAL TONE.

3. Press and hold the DUAL button to display the "LWV" menu.

4. Use the TONE buttons to select a TONE category.

5. Use the UP / DOWN arrow buttons to select a TONE within the selected category and press ENTER.