So, I was really impressed by the previous reviews and had therefore ordered this number block. I deliberately name SPEEDLINK indicated in my reviewer's heading with, because that is on top of the article that has been delivered to me, does not even looks the way, just as in the picture of the item description. Additionally, it should also be said that I've got a device with automatic cable rewind, which is the only plus point in my device. Because this cable winder is really great. The much-vaunted button for Calculator shortcut does not exist in my device. And the only button that works, is the 6 !!!! Then nothing. So my computer recognizes the device and immediately I could be like all the previous speakers started directly, if I love, long day only 6s want to type. Device will be sent back. Too bad. :-(