Sentinel iii introduces a host of improvements building upon the ergonomic palm grip design that fans have come to love spearheaded by full spectrum 168 million color led illumination for customization greatly improved intuitive software and matte coating with acrylic top panel the sentinel iii is the perfect choice for palm grip gamers looking for a comfortable mouse with advanced features pinpoint accurate sensor an avago 3988 sensor offers pixel perfect movements and goes up to a hig