Through end-to-end engineering and design, Logitech G developed a robust wireless solution to solve the fundamental problems of latency, stability, and connectivity. The end result is LIGHTSPEED, a pro-grade wireless solution that achieves wired-like performance. ULTRA-LONG BATTERY LIFE HERO sensor and LIGHTSPEED wireless deliver extreme efficiency to let you game for months. It delivers up to 250 hours run-to-die on just one AA battery. It can be adjusted to last up to 9 months of typical use in Endurance mode, which can be selected via Logitech G HUB.3Tested on Logitech G240 Gaming Mouse Pad Logitech G HUB, as well as the indicator light on G305, will notify you when 15% of battery remains. ULTRA-LIGHTWEIGHT At Logitech G, a wireless gaming mouse doesn’t need to be heavy. G305 is very light, coming in at only 99 grams, made possible thanks to the lightweight mechanical design and ultra-efficient battery usage. 6 PROGRAMMABLE BUTTONS G305 primary switches, both left and right, are rated for 10 million clicks. G305 also has middle click, DPI button and two side buttons that can be programmed to your preferences using Logitech G HUB. 4Advanced settings require Logitech G HUB MECHANICAL BUTTON TENSIONING Mechanical button tensioning with separated buttons enhances the consistency of the left and right primary mouse buttons and helps reduce the force needed to click. This results in crisp, reliable button performance you can depend on in even the most intense gaming sessions. PLAY ANYWHERE The durable, lightweight design with a small footprint and built-in USB nano receiver storage make G305 a great travel companion.