6 levels of speed (600/800/1200/1600/2400/3200) meet the needs of different scenarios. High speed transmission technology makes it move faster and more accurately. When playing games, you can use the high speed for quick response and the mouse can move exactly where you want. The mouse has 7-color breathing led backlight and when it flashes to your favorite color, you can press the side button + middle button to lock it. Please be sure to review all photos and read the description before purchasing. Items listed as vintage and with their original packaging may be very brittle/breakable. If item is still sealed I will not open to test the durability of the item. Items are sold in "as is" condition. Please ask any questions you may have before purchasing. Shipping is based on a rough estimate of size, weight, and dimensions.