Adjusting The Volume - Sony MP-CL1 Help Manual

Adjusting the volume

Slide the Jog Lever to + or − while the menu is not displayed to adjust the volume.
Checking the remaining battery power
Press and quickly release the  button (within 1 second). The
orange, showing the battery status. The lamp blinks in one of the following patterns
according to the remaining battery power.
(Once): 0% to 30% remaining
(Twice): 30% to 70% remaining
(Three times): 70% to 100% remaining
lamp blinks in