Trust GM-4200 Gamer Mouse (14463) 6 button optical gamer mouse with 1600 dpi optical sensor for enhanced response and accuracy Sensitivity adjustment button to switch between 800 and 1600 dpi resolution 6 programmable buttons to assign various game actions Optimized design with durable rubber coating for comfortable grip Up to 20g acceleration tracking and 1.65 meter/second speed for accurate surface tracking at high speed movement