Kaliber Gaming by IOGEARs SYMMETRE Ambidextrous Gaming Mouse is the perfect choice for both casual gamers, as well as hardcore gamers that care more about performance than bells and whistles. On the outside SYMMETRE is designed for everyone, and features a truly ambidextrous design with thumb buttons for right and left-handed gamers. At the heart of SYMMETRE is a gaming-grade optical sensor that delivers a level of speed and accuracy on par with mice costing over twice as much. Rather than compromising performance to save cost, SYMMETRE instead strips away fluff like custom lighting colors that while looking nice, certainly wont help you win any games. What does help you win games are core features like user programmable buttons for adding macros, and shift on-the-fly adjustable resolution up to 4000 dpi which make SYMMETRE an excellent performer and a great value.