Have been looking for wireless options for a while now but unfortunately I will probably have to wait a few years or two more. Current Although I praise the possibility of replaceable batteries, the mouse becomes too heavy. Why so big batteries when the battery life is obviously good enough

My Son is well into his gaming ad this mouse is exactly what he wants,very pleased with it

Nowhere do I see technology's relentless progress more these days than in wireless mice. When I was in college, not all that long ago, I had a wireless mouse for traveling. It cost me $30, and it barely worked.

Initially, I was going to return this product when I tried it on my PC. There was horrible response time and lag. By downloading Logitech's gaming software and updating the G603's Firmware, it no longer lags when using the USB receiver.

The G603 is probably best for someone who wants a great precise mouse for productivity, and who plays slow paced or strategy type games where it's weight won't be such as issue. The weight comes from the 2 AA batteries used to run it, although it can be run on one, I wouldn't recommend it.

I have been a hardcore fps gamer for more than 10 years. this is the BEST "Casual" gaming mouse for me. pro 1.battery life is insane, way better than the g403 or g703 2.robust as fuq IMO logitech>steel series > razer 3.

The mouse worked fine when I first installed it; however, after a while, the mouse wheel wasn't working properly. When you scroll up and down, it would sometimes scroll in the opposite direction intermittently. After researching online, it appears this is a common issue with this model mouse.

This mouse is slower than my G203, good for casual use but not fast enough for competitive FPS gaming. Battery life, portability is amazing, but still not 100% in performance/reaction time.

i used before corsiar gaming muse and this muse is one level higher, muse feel expnsive and move fast one bad things is the wights little bit havey

As I mentioned in our recently published Logitech G613 Wireless Mechanical Gaming Keyboard review , gamers by and large stick to wired peripherals for various reasons. As we found out with the G613, wireless peripherals can easily keep up with their wired counterparts.

Comfortable; ergonomic design; Can use with 1 or 2 AA batteries to adjust weight; Fast response time; Great battery life; Lo/Hi mode to extend battery life; LGS pretty easy to use; heat map functionality included; 200 - 12000 DPI; Can save profiles on board; BT or LIGHTSPEED wireless options

A tad slippery feeling; Requires a USB port for LIGHTSPEED connectivity; Some many not like the narrower/higher profile