G305 LIGHTSPEED Wireless Gaming Mouse (Blue) - G305 is loaded with HERO sensor 12,000 DPI performance and LIGHTSPEED wireless 1 ms connectivity in a readily-available and very-affordable package. HERO Sensor - Next-generation HERO sensor delivers incredible performance and up to 10x the power efficiency over previous generations. HERO is an optical sensor capable of exceptional accuracy and responsiveness with 400 IPS precision and up to 12,000 DPI sensitivity. LIGHTSPEED Wireless - Ultra-fast LIGHTSPEED Wireless technology gives you a lag-free gaming experience. G305 delivers incredible responsiveness and reliability with a super fast 1 ms report rate for competition-level performance. Ultra-Long Battery Life - Play at peak performance without worrying about running out of power. G305 boasts an incredible 250 hours of continuous gameplay at 1ms report rate in Performance mode on just one AA battery. G305 has a battery indicator light that flashes red at 15% battery remaining. Switch to Endurance mode via Logitech Gaming Software and extend battery life up to 9 months on a single AA battery. Endurance mode reports at 8 ms. UItra-Lightweight - G305 is designed to be lightweight for high maneuverability. Wireless does not have to mean heavy. G305 is a lightweight gaming mouse that comes in at only 99 grams thanks to efficient lightweight mechanical design and ultraefficient battery usage. Portable Convenience - The durable, compact design with built-in nano receiver storage makes G305 not just a great desktop mouse, but also a great laptop travel companion. Use it with a gaming desktop or throw it into a bag with a gaming laptop to play anywhere.