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Noise cancelling stereo
headphone and MP3 player
Art.no 38-4449
Model MH304
Please read the entire instruction manual before use and save it for future
reference. We reserve the right for any errors in text or images and for making any
necessary technical changes to this document. If you should have any questions
concerning technical problems please contact our Customer Services.
1. Safety
•
Warning!
The product is powered by one rechargeable 3.7 V lithium-
ion battery. Do not attempt to replace the battery with conventional or
rechargeable R03 battery as this may permanently damage the product.
If the battery needs to be replaced, this must be done by a qualified
technician. There is a warning label over the battery compartment. If this
has been removed or damaged, the warranty is void.
• Never expose the product to high temperatures, a dusty environment,
severe vibrations, impacts, humidity and moisture.
• Have the battery replaced if the product switches itself off or if nothing
happens when you press a button.
• Avoid using the product in very dry surroundings where static electricity
may easily form.
• Do not dismantle or modify the product in any way.
•
Warning!
Do not use the product in such a way that your attention is
reduced when you are in traffic and are driving a car, motorcycle, etc.
Do not use the product at such high volume that you are at risk because
you are distracted when walking, cycling or running.
• Switch off the headphone and be sure to pay full attention to your
surroundings if you are crossing a road or are in a hazardous traffic situation.
• Protect your hearing. Listening with the volume set too high for a long time
may result in permanent damage to your hearing.
• We cannot accept liability for lost data files on the memory cards that you use.
It is the user’s responsibility to take the necessary steps to avoid data loss.
Make frequent backups of your data files on different storage media.