G305 features the next-gen HERO sensor with 12,000 DPI sensitivity and LIGHTSPEED wireless 1 ms performance. It's long-lasting with 250 gaming hours from one AA battery (an indicator light reminds you before you need a new AA), ultra-portable with built-in nano receiver storage, lightweight weighing in at 99 grams, and ready to game with 6 programmable buttons. G305 is the LIGHTSPEED wireless mouse for all.