I have a Medion PC whose keyboard and mouse for a long time went on my nerves. The keyboard was rickety, the mouse looked extremely cheap and has also felt the same way. By searching for a wireless mouse for notebook's I became aware of the Blue-Track technology from Microsoft. I looked at the Microsoft Wireless Comfort Desktop 5000 Keyboard. The slight curve of the keyboard I liked, the new technology had been working fine with the notebook mouse. So - ordered from Amazon! Meanwhile, I've been so "rattled" some time on the keyboard and am more than satisfied. The keystroke is quite comfortable (slightly tight) and nothing wobbles or rattles. The function keys are extremely practical. After a short Eingwöhnen everything goes much faster. Direct access to the browser, e-mail functions, media center and more facilitate the work enormously! While the mouse looks a bit heavy, but fits comfortably in your hand and is very functional! It works even without Pad great! Even on the glass table no problems! Here the price and performance! The material looks high, the technology works. My recommendation: Buy!