• External devices connected to the electrical input must be safe according to the requirements of IEC
60601-1, IEC 60065, EN/IEC 62368-1, or IEC 60950-1, as appropriate.
• No modification of this device is allowed.
Warnings related to power hearing aids
• A power hearing aid can produce very loud sound to compensate for a severe or profound hearing
loss. There is therefore a risk of further impairing the remaining hearing.
• Your hearing aids have been customised to amplify soft and loud sounds according to your particular
needs. If the amplification seems too loud or you suspect the hearing aid is malfunctioning (e.g. you
hear distorted or unusual sound), contact your hearing care professional. A malfunctioning hearing aid
can damage your hearing.
• In general, exposure to loud sounds can damage your hearing. This could be loud music or loud
environments. You can best protect your hearing by reducing exposure to loud sound and
environments or by using hearing protection.
• Warning to hearing care professionals: Special care should be exercised in selecting and fitting
hearing aids with a maximum sound pressure level that exceeds 132dBSPL, measured in a 2cc
acoustic coupler in accordance with IEC 60318-5:2006. The remaining hearing may risk further
impairment.
CAUTION:
• Use your hearing aids as your hearing care professional recommends. Incorrect use may damage
your hearing.
• Do not use a broken hearing aid. It may not work properly and may be harmful to your hearing. It may
also cause scratches or sores due to sharp edges.
50 General warnings and cautions