1. Be in possession of a Li-Ion battery and a charging cable for it; to quote them: Charge rapidly and obtain sufficient power for a full day of use in just three minutes, with no downtime during the recharging process. A complete charge can keep going for up to 70 days, which means that the charge itself can go for 70 days. Again, it is dependent on the number of hours that the gadget is used each day; nonetheless, it appears that it was written eight hours a day over a period of seventy days. For that particular time period that I had pleasure in, we can therefore assert that this is the case; 2. Two keys on the left-hand side that, in most cases, make page navigation easier. The one that is located further away is in front, while the one that is located closer is at the back. But besides that, you may use it for playing games, changing weaponry, and other things. In order to change tools and such in programs like Adobe, for example. The only caveat is that this feature is not built-in or available everywhere (that is, so that in the program or game itself, etc., you can place some actions on these keys in the key assignment menu), and you will need to program such actions on these keys; 3. Sensor resolution of 4000 DPI for any users, 1600 will be sufficient (tested in our experience), and e-sports players simply need higher values. Above, in the middle, next to the power indicator (green in the image), there is a switch for that same DPI; 4. Additionally, it is important to note that when the mouse is "embedded" into a computer or laptop, after some time the official Logitech program is installed to control devices purchased from this company, which is very convenient, for example, to find out the charge; 5. Radio channel, the most advanced wireless technology, which, most likely, they are the only ones who can do. Yes, you are able to use this mouse by "wire" as well as via "air." It is common practice to refer to mice of this type as hybrid mice; 6. Here are a few more words from the manufacturer: The 4000dpi Darkfield sensor will track perfectly almost everywhere, including on glass (but only if the minimum glass thickness is less than 4 millimeters); 7. White color; (light gray).