On the bottom of the G305 Lightspeed, you will find the same "Hero"-branded optical sensor used in Logitech's more expensive mice. Its resolution ranges from 100dpi to 12,000dpi, so don't expect quite the same amount of flexibility you would get from the 16,000dpi-maximum Razer Mamba. That said, at the upper fringes of mouse resolution, it's mostly a numbers game, as opposed to what you can actually perceive. As is the case with most Logitech peripherals, every device can be controlled and modified using the company’s Logitech Gaming Software. The latest version of LGS provided to me during this review carries on the same streamlined features and ease of use as the previous versions. While there’s no flashy lighting or customizable RGB effects on the G305, there is a bit of customization available. With the Hero sensor, the Logitech G305 Lightspeed felt responsive, whether I was using it on my best RGB mouse pad or no mouse pad at all -- something you won't find in cheaper gaming mice. This makes the G305 Lightspeed more versatile and portable too.

If this Logitech mouse is anything like the single AA Microsoft Bluetooth Mouse I have been using for the past 2 years (or Logitech wireless mice I own) that battery is a plus, not a minus. With the exception of e-sports pros, these numbers won't mean much to most people, as I'm doubtful you'll be moving your mouse over 30 feet in a second unless you're so outraged by your teammates' performance that you fling the G305 Lightspeed across the room. (And that's just poor sportsmanship, really.) As for the gravitational-force threshold, anything between 30G to 50G is enough to register your hand's abrupt jolts and jerks. Keeping Up With the Competition A Unifying receiver looks like the image below, and it does not work with products that are not Unifying compatible.

The Logitech G305 Lightspeed is great for PC gaming and taking care of business.

Missing from this equation, however, is Logitech’s Powerplay technology. Last year’s G903 and G703 are compatible with a Powerplay mousepad that provides wireless charging. Clearly, the AA battery setup works great, but it would have been nice if the option for Powerplay compatibility was available. Then again, it probably would have increased the price, negating one of the G305's main benefits. Software But there are some sacrifices here. You're using a AA battery, so you can't recharge it. Plus, if you're a high CPI gamer, there are better options out there at a comparable price. The Razer Mamba Wireless and Roccat Kain 200 Aimo are both competitors in those regards. Whilst we will do everything we can to meet the delivery times above, there may be factors outside of our control and we cannot guarantee delivery within this time frame.

It's been done before, the wireless mouse for the frugal gamer—but done well is another matter. The Logitech G305 Lightspeed may be plain compared with the likes of competitors such as Razer's Mamba, but its strength comes from its guts, rather than its outer shell. Logitech’s wireless Lightspeed communication tech remains unsurpassed. If you’ve ever played an intense game with a laggy, run-of-the-mill wireless mouse you know the irritation of always wondering if that last death was brought on by slow response from the mouse to the receiver. But as stated earlier, the G305 feels just like a wired gaming mouse. While I’m unable to scientifically test Logitech’s claims of 1ms response with this mouse, I can certainly attest the "in-hand" results felt like it was wired. As someone who primarily plays first-person shooter (FPS) titles, like CounterStrike: Global Offense and Rogue Company, I'm eager for gaming mice that are so well-built that they help me grow better as player. Logitech's proprietary Hero sensor used in the G305 Lightspeed is the kind of technology that can help make that happen. The sensor is specced for a sensitivity range of up to 12,000 CPI. That's lower than the Mamba Wireless and Kain 200 Aimo's sensors, which each go up to 16,000 CPI. But for a mainstream gamer, 12,000 CPI should be sufficient. The Hero sensor can also hit a max velocity of over 400 IPS (inches per second) and handle up to 40G of acceleration. Next to where the battery fits is a compartment to carry the dongle for easy travel and making sure you don't lose your Lightspeed connection. Gaming Performanceof Logitech G305 Lightspeed I'd prefer a mouse with an easily available inexpensive replaceable cell. It would be superior to atitle=More%20Expert%20Tech%20Roundups&type=articles%2Cvideos&tags=tech-roundup&count=6&columnCount=6&theme=article Battery life is another concern in regards to wireless mice, but the G305 has some impressive figures in that department. A single AA battery will keep the mouse running for up to 250 hours with the previously mentioned 1ms response time—not too shabby for a mouse offering that level of performance. But if you’re just using the G305 for general work applications or surfing the web, you can drop it into “endurance mode” via Logitech’s software and the mouse will reportedly run for nine months on a single battery with an 8ms response time. That’s a handy feature for anyone who needs a laptop mouse for the road, since it can still offer precision gaming performance when needed.

The polling rate of the Logitech G305 Lightspeed ranges from 125Hz to 1,000Hz. (As is our custom, we tested at 1,000Hz.) In addition to letting you designate the DPI "steps" and the number of sensitivity levels you can access by way of the dedicated DPI-switcher button, LGS allows you to set the polling rate. What's more, you can choose from the LGS home menu whether you want the G305 Lightspeed's settings stored on your computer or in the on-board memory of the mouse itself. This could prove useful when traveling, say, for gaming competitions. To determine if your Logitech device is Unifying compatible, look for this Unifying logo on your device.If your receiver and product have the below logo, you have the Logi Bolt receiver and a Logi Bolt compatible product. Isle of Man, Isle of Wight, Northern Ireland and the Scottish Highlands) may take longer to reach you.

We mentioned the AA battery a moment ago. Logitech claims 250 hours of battery life from that AA cell in the G305 Lightspeed. However, that is only the case when the mouse is set to the default Performance mode in LGS. Another mode, called Endurance mode, is a choice alongside it. When enabled, Logitech says the battery life rises to a full nine months but the response time rises from 1ms to 8ms; in other words, an increase in latency is one of the trade-offs for conserving battery life.Instead of a rechargeable battery, the G305 Lightspeed runs on a single AA battery, Logitech claims you can get up to 250 hours of gaming off one battery. That’s way more than the 50 hours Razer claims with the Mamba Wireless. You can get a battery life reading from the G Hub software. Also helpful is the LED under the scroll wheel, which flashes red when the battery's dying. Bottom Line The curvature on top of the G305 is subtle and is very comfortable in the palm of the hand. I personally prefer playing with a palm grip, but I found the G305 equally comfortable and all of its six buttons easy to access with a claw grip, as well. There are two standard thumb buttons on the left side of the G305, and while this mouse has a symmetrical design that would work for both lefties and righties, the thumb buttons are not swappable like they are on the G903. The mouse wheel is wide and scrolling is smooth and pleasant.