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Forget what you know about wireless mice - the Logitech G900 Chaos Spectrum gaming mouse is a wireless mouse that not only matches wired mice, but also sometimes surpasses them in terms of responsiveness, with Logitech claiming 1ms report rate (that claim needs to be tested still).
SpecsUpdate
Pros
Pro Just as reliable as a wired mouse
The G900’s transmitter performs well enough that it’s almost indistinguishable from other wired mice, in some cases even surpassing them in click latency tests. This, combined with its high quality sensor, makes it a great wireless option for a gaming mouse.
Pro Button clicking gives a satisfying feel
The main left and right buttons are built in an uncommon way, mainly to provide a more satisfying feel when they are clicked. Each uses a pivot bar to provide consistent clicking, regardless of where you press the button. In addition, there are metal springs under the main buttons for faster recovery after clicks.
Pro Extensive customization
Aside from sensor and DPI adjustments, the G900 features extensive customization options. It has plenty of extra buttons that you can rebind with commands or macros. The scroll wheel can be changed to either free-rolling or notched scrolling. You can also choose to use it as a wired mouse, if you prefer. Full RGB lighting support lets you customize its look to suit your gaming rig.
Cons
Con Limited thumb buttons
Those switching from the G700 will find that they are going from 4 thumb buttons to two. Yes, the G900 allows for customizable side buttons of up to 2 on each side, but those who like to have more than 2 thumb buttons for gaming (especially MMOs) may find this hard to adapt to.
Con Poor build quality
The build quality does not feel as premium as the price tag. Average materials makes them look and feel the same as cheaper models. The DPI buttons can be unreliable and might stop working smoothly after a short while, despite proper care & cleaning of the mouse.
Con Poorly designed app
The app looks dated and is poorly designed. The UI is confusing, many elements not labelled properly, making you guessing what they do. Many UI elements are tiny and fiddly to click. There is a lot of space for improvements, but for many years, Logitech's apps has been evolving very little or not at all.