Features: High-end optical motor, precise positioning. 7 buttons, including Buttons: Left, Right, Scroll Wheel, DPI +, DPI-, Advance, Retreat. Adjustable 1200/1600/2400/3200 DPI. Ergonomic design, comfortable touch, long-term use without fatigue. Smart connection, plug and play. Giving a total of 7 bright colors showing returns, a color visual effect. Small size and lightweight, easy to carry around.