Review on Renewed Logitech MK540 Advanced Wireless Keyboard with M185 Mouse & USB Receiver - 920-008981: Enhanced Performance at a Great Value by Toyofuku Hideo ᠌

Has some pros Beautiful, soft silent keys, the presence of function keys (primarily to control the volume when watching videos from YouTube), wireless. Long-lasting batteries. Different cons: If the router is located near the signal receiver, episodic and even systemic malfunctions are possible: the keyboard and / or mouse stops working.