The
magnetic loops
create an
electromagnetic
field within
the class-room
and the teacher's
or student's
voices can
be heared
by a student's
wearing his
own pocket
or body-worn
hearing aid.
This permits
the hearing
aid to act
like a pocket
transistor
radio, and
student can
move about
freely in
the class-room
during play
or learning
and yet hear
the teacher
or other students
talking from
their desks. |