During 22nd-24th July 2015 there were 3 engineers from Tokyo visiting our Department, who were observing 12 surgeries (microlaryngoscopies and functional endoscopis sinus surgeries). During every surgery we have used super new technology with 4K technique. Tested devices facilatated the surgeries, giving us very good intraoperative pictures. We have discussed different aspects of new techniques using the newest technological solutions.