As part of product testing, I had to get to know the Braun shaver CT4S Cooltec with active cooling technology and the opportunity to test extensively in a multi-week phase of the project. At this point I want to emphasize that I in any unrelated (as an employee) stand to the manufacturer or to other partners and hereby also want to cause any surreptitious advertising or the like. I was first of all mainly once the product idea (skin friendly shaving with cooling effect?!?) And fascinated at the same time, the extent to which this claim or this slogan (the actual sense) at all apply to me ... My impression after the first test: Wow, I'm impressed! Had since then in terms of dry shave and Brown, now something in the tooth forward / forward / predecessor (BROWN "Syncro"), but with the new shaving foil and cutter block could still keep up to date in terms of thoroughness. But in terms of thoroughness and skin gentle shaving, is once placed here with the ° Cooltec the bar in the remaining razors world very high! When unpacking, I was initially slightly skeptical and thought, well the narrow aluminum cooling element can be a little feel "fresh". But think, as after a few seconds a really pleasant cooling effect has occurred to me, I would not expect so real, especially how efficient is the cooling during shaving. Even if I had done at certain (sensitive) games on the face or even on the neck several times in the same places the typical floats, the skin was almost not reddened, and I was left with no Juckempfinden. In short, the skin feels after shaving to a lot more relaxed than before. What is also useful and very important that before going in my opinion, powerful battery (shaving with or without cooling function) to tilt, is reminded of the next charging process, so that shaving can still be stopped with a good result. Because of the waterproof case (Shaving in the shower) is a spontaneous operation with cables with complete battery discharge not possible. But the 5-minute quick charge makes it so up for it. In general, the razor fits comfortably in your hand. The weight find compared to other dry shavers more than adequate, especially since an additional cooling element is included. The workmanship and quality in terms of shear system is top. The only complaint I have is that in my opinion overly-trimmer. Especially if I want to trim the sideburns evenly, but is a clean and above all straight "Cut" heavier than possible with my older previous model !! Conclusion: Respect, for that matter shave and this cooling innovation specially developed, Braun has proven once again why they are the years rightly to the "top dogs" in this segment.