User guide

9
CAUTION
Danger of explosion if the battery is
incorrectly replaced.
Replace only with the same or equivalent type.
Warnings
You should familiarize yourself fully with the following general warnings and the entire contents of this booklet before
using your T-DEX.
Misuse can result in sudden and permanent hearing loss.
T-DEX is not a toy and therefore should be kept out of the reach of children and anyone else e.g. people with learning
difficulties who might swallow parts or otherwise cause injury to themselves. Special attention should be paid to the
smaller components in order to prevent children from swallowing them and choking. If a part is swallowed, see a doctor
immediately.
Always make sure to set the volume controls correctly according to your hearing. By using T-DEX with a sound pressure
level that is too high, you may risk impairing your hearing.
Never allow others to wear or use your T-DEX as incorrect/wrongful usage could cause permanent damage to their hear-
ing.
Dysfunction in T-DEX
T-DEX may stop functioning, for instance if the batteries are discharged. You should be aware of this possibility, in particu-
lar when you are in traffic or otherwise dependent on warning sounds.
Interference
Your T-DEX has been thoroughly tested for interference according to the most stringent international standards. But new
technical developments constantly bring new products into society, and some may emit electromagnetic radiation, lead-
ing to unforeseen interference in T-DEX. Examples include induction cooking appliances, shop alarm systems, mobile
telephones, fax machines, personal computer devices, X-rays, computer tomography etc.
T-DEX is designed to comply with the most stringent Standards of International Electromagnetic Compatibility. However,
T-DEX might cause interference with other medical devices. Such interference can also be caused by radio signals, power
line disturbances, airport metal detectors, electromagnetic fields from other medical devices and electrostatic discharges.
Possible side effects
The otherwise non-allergenic materials used in T-DEX may in rare cases cause a skin irritation. Consult a doctor if you
experience any side effects.
Use on Aircrafts
The T-DEX should not be used on board on aircrafts unless specifically permitted by the flight personnel.
Implantable devices
T-DEX is designed to comply with the most stringent Standards of International Electromagnetic Compatibility. However,
T-DEX might cause interference with other medical devices such as defibrillators and pacemakers. Please, contact the
manufacturer of your implantable device for information about the risk of disturbance. Interference can also be caused
by power line disturbances, airport metal detectors, electromagnetic fields from other medical devices, radio signals and
electrostatic discharges.
Never exposure T-DEX to great heat by putting it in the oven, in the micro wave oven or by burning it. There is a risk that
it will explode and cause serious injury.
The safety of the use of T-DEX with auxillary input cable is determined by external signal source. When the input cable
is connected to mains-operated equipment, this equipment must comply with IEC-60065, IEC-60601, IEC-60950 or
equivalent safety standards.