Mice & Trackballs Features: Powerful PMW3325 optical engine features 5000IPS frame rate and 50G acceleration, provides accurate click, quick response and stable signal. Ergonomic design, the vertical type mouse fits the palm and fingers, reduces discomfort when using, bid farewell to the "mouse hand". 5 adjustable DPI(1000-2000-3000-5000-10000DPI), easy to switch, adapt to a wide range of material surfaces, accurate position, to meet your daily office and gaming needs. Equipped with detachable tail pad, it can be installed and used flexibly according to personal habits. Exquisite surface treatment, comfortable hand feel. Bionic tire type roller, comfortable oblique texture design, increase friction with the fingers, comfortable to use. Specification: Type: Wired vertical mouse Button number: 12 DPI: 1000-2000-3000-5000-10000DPI Frame rate: 5000IPS Acceleration: 50G Return rate: 125-1000Hz Key life: About 10 million times Working voltage/current: 5V 100mA Cable length: About 1.8m Item size: 13.4 * 9.6 * 8.3cm /5.28 * 3.78 * 3.27in Product weight: 165g Packing list: 1 * Mouse 1 * Tail pad 1 * User manual