Features: V30gaming mouse: Up to 3500 DPI resolution, 500Hz frequency. Steering anti-skid wheels provides you with good tactile feedback. Smart connectivity, no need for code, plug and play. Ergonomic design fits your palm to the maximum extent. Built-in PMW3320 IC professional game laser chip. CK108wired keyboard: Plug and play, do not need to install any driver, easy to use. Ergonomics design is made for gamers, officers, etc. Carefully design, adding a series of shortcut function keys. Support 6 kinds of themes cool backlighting. Every major theme covered with three backlit effects. Adopting professional game chip, giving you a perfect game experience. Press FN + Insert / FN + HOME / FN + Page Up / FN + Del can switch backlight modes. Professional-level shaft, fine press feeling , obvious knock sense , clear sense of paragraph , strong degree of crisp trigger. Blue switch is suitable for both typing and gaming. Black switch is very suitable for gaming.