PLUG AND PLAY: Self-storing Nano Receiver easy to take, enjoy the convenience of a tangle-freely, wireless mouse as soon as it is inserted. 6 buttons design with DPI button, roller button, left/right/forward/backward button, quickly set the role of skills in your games. HIGH PRECISION OPTICAL ENGINE: 4 adjustable DPI modes of 1,200 / 1,600 / 2,400 / 3,000 with a frame rate up to 3,600 fps. This gaming mouse with optical tracking technology helps you to control the mouse's speed and sensitivity. ERGONOMIC DESIGN: The ergonomic design makes this mouse comfortable in the hand. The rubber surface and contoured shape fits seamlessly in your hand and moves with your palm. It really is the perfect gaming mouse. WIDE APPLICATION USE: Compatible all versions of Windows from XP onwards, Mac OS and many more. WHAT YOU GET: Ergonomic wireless vertical mouse (requires 2 AAA batteries, not included), nano receiver & user manual. We provide a 2-year warranty and 30 days refund or replacement service.