Good thought, but prevents sleep mode of the PC

The keyboard is actually done quite well. Partially agree the critical remarks here: No Cherry-key quality (at the price but also not to be expected) and the battery cover does not close flush (get over). Pairing the USB receiver with the keyboard was trial and error hip. The instructions are more likely to be described as rudimentary. Therefore, for those who want to try this keyboard: USB plug receiver, then press button on the USB receiver. Press the Fn key on the keyboard * then * the pairing button top left while holding down the FN key and * then * the release pairing button again (but not the FN key). Sounds more complicated than it is when you first know what order is complied with. Coupled ;-) Once the keyboard has worked properly. The trackball could be a bit more specific -. A DPI setting such as in (30 EUR more expensive) Enermax Micro missing, but since you can certainly work over with the Settings Windows own. I have not tried, because it is a - is a massive flaw with this keyboard - for me: My Multimedia PC did not want to go down to the sleep mode since commissioning of the keyboard. The LED of the USB receiver was observed that the keyboard - even though she was unused on the table - incessantly sent signals to the receiver. I assume that is used to maintain the wireless connection. But why this must be the case permanently, it is not clear. In sum this leads to the devaluation of a really quite ordinary wireless keyboard - especially given the price.. But it is no good if the living room PC running all night, even if it is not used. So the keyboard returns. Too Bad.