Trust Computer Products provides a complete, innovative and affordable range of technological products. The key principle in developing products is to offer variation, pleasure, relaxation and excitement to the user, a principle Trust aims to fulfill. Features: 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 Lightweight USB cable for less drag and maximum freedom of movement Model number GM-4200 - PredatorUp to 20g acceleration tracking and 1.65 meter/second speed for accurate surface tracking at high speed movementSystem Requirements:USB portWindows Vista, XP or 2000Package contents:MouseCD-ROM with softwareUser's guide