Logitech - G305 Wireless Gaming Mouse - Blueper-fast response time of 1 ms. It manages a full 250 hours of game on a single AA battery and has an indicator light that lights up before the battery runs out completely. Thanks to an efficient mechanical design, the G305 weighs only 99 g which gives great maneuverability. The solid, compact shape and built-in space for the nano receiver make the G305 a convenient travel companion ready for gaming with 6 programmable buttons. All in all, this wireless LIGHTSPEED mouse is ready for everything, right away and without a fortune. G305 LIGHTSPEED gaming mouse Wireless LIGHTSPEED gaming for everyone - 12,000 DPI HERO sensor - 1 ms wireless LIGHTSPEED - 250 hours of battery life - Ultra light with only 99 g - 6 programmable buttons