Feature: 1. Ergonomic design, vertical operation, the wrist is naturally bent, fully fit the palm of your hand, allowing you to work and study easily. 2. Skin‑friendly surface, non‑slip, anti‑sweat, delicate and comfortable, giving you a better experience. 3. Convenient and fast forward and backward buttons, one‑click to switch web pages, allowing you to easily access the Internet and quickly browse files. 4. 800‑1200‑2000‑3200 four‑speed DPI can be switched, precise positioning, easy to deal with office, game, design and other needs. 5. With colored LED indicators. Smart connection, no coding, plug and play. Specification: Item Type: 3200dpi Optical Vertical Gaming Mouse Operating Mode: USB Optical Connection Motion Resolution: Up to 3200dpi Number Of Programmable Buttons: 6 Button: Left Button, Right Button, Scroll Wheel, Upper Page, Next Page, DPI Switch Key Operating System: For Windows98/2000/ME/XP/Vista/Win7/8/10/OS, etc. Material: Quality ABS Colour: Black Package List: 1 x Mouse Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.