Mouse 1.Human engineering for left and right hand. 2.800-1200-1600DPI solution ,ultra precision optical sampling technology .Keyboard 1.Concise and fashion style, comfortable feeling, give you a freeness experience and high taste life. 2.3.FN multimedia keys,With Fn multimedia keys, you can fast operate the music play, volume control or internet browsing and save the tim 3.Keyboard splash-proof, more comfortable office scene