Features: Powerful optical gaming engine provides accurate click, quick response and stable signal. 3 adjustable DPI(800-1600-2400DPI), easy to switch, adapt to a wide of material surfaces, accurate and reliable position. RGB light effect, greatly enhances gaming . Ergonomic design, the curve fits your palm, comfortable grip, not easy to fatigue. High-quality roller wheel, -slip and sweat-proof, smooth scrolling.