Logitech G309 Lightspeed Wireless Gaming Mouse, Lightweight, LIGHTFORCE Hybrid Switches, Hero 25K Sensor, Battery Life >300 Hours with AA Battery, 6.

About this itemMaximum Gaming: This wireless gaming mouse switches from robust, low-latency LIGHTSPEED wireless connectivity to Bluetooth connectivity for total wireless flexibilityMinimum weight: The Logitech G309 LIGHTSPEED is a lightweight gaming mouse that weighs only 86g with the included AA battery or 68g (without battery) with the use of the POWERPLAY wireless charging systemMaximum accuracy: The HERO 25K sensor on this wireless gaming mouse provides exactly sub-micron scale tracking without smoothing for precise wireless gamingMinimum charge: Over 300 hours on an AA battery or unlimited battery life with POWERPLAY, so you can focus on the game, not on battery life.Maximum speed: LIGHTFORCE optical/mechanical switches with optical speed, mechanical feel and optimized gaming performance