Labex Harmony User Manual, Date: 15 February 2021, # 2
O
VERVIEW
1.
What is Labex Harmony
Labex Harmony is a digital electrolarynx device. It
is specially designed to help laryngectomees talk.
Its main feature is the two individually
configurable talk buttons.
Labex Harmony is a CLASS I medical device.
General principle of operation for all models
electrolarynges manufactured by Labex Trade
Ltd.:
The digital electrolarynx produces mechanical
vibrations with a low sound frequency between
60-195 Hz. Applied to the neck, these vibrations
create trembling in the oral cavity compensating
for the energy generated from the lungs.
The combination of starting and stopping sound
vibrations and oral articulation creates
comprehensible speech.
