HERO Gaming Sensor : Next gen Hero mouse sensor delivers up to 10x the power efficiency over other gaming mice with exceptional accuracy and responsiveness thanks to 400 IPS precision and up to 12000 DPI sensitivity LIGHTSPEED Wireless : Ultra-fast Lightspeed Wireless technology gives you a lag free gaming experience. Ultra Long Battery Life : The G305 wireless Logitech mouse boasts an incredible 250 hours of continuous gameplay Lightweight Design : Thanks to an efficient mechanical design, the G305 gaming mouse weighs in at only 99 grams for high manoeuvrability