Logitech G900 Chaos Spectrum Professional Grade Wired/Wireless Gaming Mouse, Ambidextrous Mouse

I bought this while it was on sale on a splurge. I hadn't considered purchasing a wireless mouse or keyboard in the last ten years as my experience with them in the past is of annoying surprise battery deaths, latency and generally low reliability for a device that tends to sit in one static location most of the time anyways, what's the point?While I still don't feel much of a need for a wireless keyboard, getting rid of the wire on my mouse ended up being a huge weight off my shoulders as I now have a far more comfortable time moving my mouse around without the weight of the cord tugging at it, and allows me wiggle room in my hand's orientation as I no longer need to keep the mouse straight. And while it is a rare thing to need, I do appreciate being able to move my mouse around to different locations without having to deal with a cord (such as using your PC on the couch hooked up to a TV). And since the wireless dongle is a simple USB, you can switch between using it on multiple devices very easily.The battery life on the mouse is amazing, I feel as though I only end up plugging it in about once a week. Thankfully when it does start to run dry, the mouse itself will warn you with a red LED so it never catches you by surprise. The quality of the mouse is great and feels good in the hand, the RGB colors on the logo are customizable (although I like the default rainbow fading), the side buttons have a nice click to them, and you can expand it by attaching buttons to each end for a total of 4 side buttons. I love the ability to edit the macros each button does. It's a great successor to my old Logitech G9. My only semi-complaint is that it is a very long mouse (especially coming off of the very stubby G9), so getting used to how far out your two fingers need to be for the mouse buttons might take a few days.

Pros: The ambidextrous shape really surprised me. I had only used ergonomic mice before this and wasn't exepcting this mouse to be more comfortable than my G502, but its amazingly comfortable and light. I play mainly twitchy aim based shooters like CSGO and I can't feel any delay even when looking for it. It's also great not having to deal with any cable at all or have to worry about it snagging on things on my desk. The hyperscroll feature is insanely useful as usual and I don't think I'll ever move away from Logitech solely for this feature anyway. It's just unmatched when it comes to scrolling through long PDFs such as manuals and textbooks.Cons: The two dpi shift buttons are in a weird place and took a bit for me to adjust to since they're where the hyperscroll lock was on the 502 relatively speaking. Battery life is not super great. Granted I don't turn my mouse off, I just let it go to sleep on its own (no delay on wakeup either!) but I have to charge it about every other day for a few hours.This mouse instantly improved my KDA beyond my wildest dreams. After using this mouse for the first time, I started dropping 30 bombs every game and climbed to Global from Silver 1 in two days. It even makes me toast in the morning, although its not the best with omlettes. When I go out on dates, I tell them that I have a G900 and trust, it'll definitely do wonders for your attractiveness. My boss gave me a promotion after I brought this mouse to work!Overall, this is a great gaming mouse. No delay, decent battery life, fantastic shape. Maybe not worth it if you already have a wireless gaming mouse but otherwise I can wholeheartedly recommend it.

EDIT: We are now Dec 27th 2019 and I bought this mouse on January 2017. This mouse is STILL working great, and the battery life is still good even. I haven't replaced it yet! So, still impressed by that mouse !------------The best programmable gaming mouse I owned so far !Got along with it another cable to charge the mouse on a regular USB power adapter, so that way I can leave the original cable with the wireless dongle. Also love the nice packaging it comes in. Look like you could just display your mouse in it, like if it was a collector piece, or use it to carry securely the mouse around too.PRO:-Good battery life-up to 4 side button with 9 total programmable buttons-great response with no lag-many display color with or without animation-Non invasive application that you can also close when not needed, and the mouse will still work great since all the settings will stay inside the mouse memory-Optical tracking with low light intensity that you don't notice at all in the dark-The scrolling wheel with smooth/free or keyed mode-Can be used directly plugged in case of low battery-Visual low battery warning (red LED when mouse wakes up/powers up) around 6 hour before the battery actually runs outCON-Integrated battery not easy to replace without pulling apart the mouse, or sending it back to a repair center if you're not a computer tech-Have to remember to often charge the battery to avoid running out at the least expected time (in middle of game for instance), in case you ignored the low battery warning.