Williams Sound POCKETALKER Ultra D1 Manual And User Manual page 19

Also, try turning the Tone Control down
(or counterclockwise) to reduce the high
frequency.
5. The POCKETALKER
jack is a mono jack, designed for mono
earphones and headphones. If you use
stereo earphones or headphones with
the POCKETALKER
side of the headphones will work.
6. If the steps above don't solve the
problem, contact your Williams Sound
Dealer for further instructions.
MAN 131H
ULTRA earphone
®
ULTRA, only one
®
19