The SteelSeries Kana is an optical, ambidextrous mouse designed for all three grip styles: palm, claw and swipe. The functionality, ergonomic button layout and size was perfected alongside SteelSeries ? professional gaming teams, who also tested and validated the precision and power hidden in the Kana ?s modest exterior. Make no mistake; this mouse was built for consistency and accuracy even in professional tournament conditions. Designed by Gamers: SteelSeries Kana is available in two versions; the first named White1.1, while the second was selected by SteelSeries ? Facebook community of more than 300,000 gamers and where 60,000 Likes determined the winning design, Black1.1.