I was just reviewing the listening instructions for OPH: there were instructions for listening time, and how many days on/off, but no recommended track. Is ultrasonic preferred on this one, or is there no preference?
Edit: It is mentioned in the volume settings instructions, but not as being the recommended track. ("...headphones or ear buds are not recommended when you're using the Ultrasonic track...)
Edit: It is mentioned in the volume settings instructions, but not as being the recommended track. ("...headphones or ear buds are not recommended when you're using the Ultrasonic track...)
The banquet you enjoy depends on what you bring to the table.
