About the quality of services - I needed a mouse, I asked the seller - what is the difference between the mice on display at the stand. He told me about the companies, and did not say a word about the fact that the mice are connected in different ways, through different slots. As a result, I bought a mouse with a round slot, but I had to use USB. I understand that it was important for him to sell, but your company lost on this - I will not come here anymore.