The Singing Machine SDL9030DB Instruction Manual page 26

Operation
Playing Songs from the Recorded Files (Continued)
6
<USB>
3
6
7
7
8
8
9
<SD>
Notes:
• You can search for a title using the same
procedure as shown on page 17.
• You can set and play a Playlist or
Favorite using the same procedure as
shown on pages 18 to 20.
— 25 —
You can sing along with your
previously recorded song. Simply
connect the microphone(s) as shown
on page 6. Slide the Mic's ON/OFF
switch to the ON position.
Adjust the MIC VOLUME control
as desired. Increasing this will
increase the volume of connected
microphone(s).
Rotate the ECHO control to add an
echo effect to your voice. Rotate
towards MAX to increase the echo
effect.
To switch between USB or SD (if
both are inserted), select Memory
using the Navigation  Right and 
Left buttons, then press the ENTER
button. Press the Navigation 
Right or  Left button to cycle from
USB to SD, then press the ENTER
button to confirm. The playlist order
will also update.