The Singing Machine SMC3093SP Instruction Manual page 21

Operation
Pitch Tune (Continued)
3
Rotate the EFFECTS STRENGH control to
set the desired effect level.
w
4
To monitor your singing, use headphones
(not included). Insert headphones into the
Headphone jack. The headphones have a
dedicated Volume control so rotate the
HEADPHONE'S VOLUME control as
x
desired.
The Headphones jack can also be used as
an audio out to connect to another audio
system using a 3.5mm auxiliary audio
cable (not included).
— E20 —