The G305 is a wireless lightspeed gaming mouse for maximum performance. The Hero sensor is Logitech's next-generation gaming optical sensor, delivering incredible performance and unprecedented power efficiency - because wireless gaming should never be compromised. DPI performance can be set between 100 and 12,000, and up to 5 profiles can be saved directly to the mouse's built-in memory. Lightspeed works as fast wirelessly as any wired technology. Designed with precision, Logitech G's end-to-end solution gives gamers wireless freedom and the performance needed for power gaming with a 1 millisecond signal rate. The Hero Sensor and Lightspeed technology ensure ultra-high power efficiency for 250 hours of gaming on a single AA battery charge. The battery allows for approximately 9 months of absolute peak performance under normal use. Only then is battery replacement required. And don't worry, the G305 has a battery level indicator that lights up when 15% battery power remains. With Logitech G, a wireless gaming mouse doesn't have to be heavy. At only 99 grams, the G305 is very light thanks to its lightweight mechanical design and ultra-efficient battery usage. The G305 is equipped with switches for 10 million clicks for the two primary mouse buttons. In addition, it has a center click function, a DPI button, and two side mouse buttons that can be programmed to your personal preferences using Logitech Gaming Software. The advanced key spring tension with separate buttons ensures more consistent left and right mouse button feedback and smooth clicking. So even in demanding gaming sessions, pinpoint accuracy and reliable clicks are no problem. The rugged, lightweight design in a compact format and the integrated storage compartment for the nano receiver make the G305 a great companion on the go.