Intended Use/Liability; User Qualification; Patient/Test Person Groups - Sennheiser HDA 300 Instruction Manual

Important safety information
▷
Clean the product only with a soft, dry cloth. Skin-contacting parts of
the headphones such as the headband paddings and the ear pads can
be cleaned with disinfectants recommended by Sennheiser (see
page 10).

Intended use/Liability

The HDA 300 is a pair of closed, dynamic headphones –designed for use
with 2-channel audiometers as a sound generator in aerotympanal conduc-
tion measurement. The headphones are also suitable for high frequency
audiometry.
When using the HDA 300, please observe the user qualification and the
defined groups of patients/test persons given in the following chapters.
The product is suitable for commercial use in confined spaces and, under
normal use and care (apart from usual wear and tear), is not subject to any
restriction in daily use or in its durability.
It is considered improper use when this product is used for any application
not named in this instruction manual.
Sennheiser does not accept liability for damage arising from abuse or
misuse of this product and its attachments/accessories.

User qualification

The product is designed for use by the following persons: ENT specialists,
paediatricians, hearing aid acousticians and speech therapists, as well as
experienced personnel for audiometric analysis and measurement
employed in the respective facilities.

Patient/test person groups

The product is designed for use with the following patient/test person
groups: children, adolescents and adults of different sexes from 3 years.
There must be no anomalies, open wounds or jewelry worn around the
head and ears that could interfere with the proper fit of the headphones.
With children, the use is limited by the head width in the area of the ears,
as it determines the contact pressure of the ear pads.
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