Full palm grip:smooth ergonomic mouse shape. Fast key:execute double left click with only one key press. Dpi switching button :quick 3 -step dpi selection upto 1600. cool lighting effect:3 colour illumination. ideally sitiuiated for high sensitivity for mouse settings. the anti-sweating design prevents edge warping. Brand MARVO SKU 100882889_NP-1021426742 Model m315+g1