Ok, folks. It's time to move on. With Valkee bright light head set one has to be very careful. Never share set with other people (because of hygiene). Only turn on set when plugs are in your ears. Do not move or do anything when using head set. 12 minutes usage per day is absolute maximum. In case of headache - no can do. So consider quitting if set causes bad feeling. Try using head set in the morning to avoid insomnia!
Those you just read above sound like European Union directives! However, instructions are there for everyone. If something happens it's your own fault. Inside cartridge box I found a microUSB-cable for charging. I think I'm ready to take some action in the morning. Everyday use for four weeks time gives the best result, says the manual.
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