The F-35A vertical wireless gaming mouse is specially designed for game enthusiasts and features unique structure and finger groove to allow your fingers to stretch and force more evenly, for precise positioning, comfortable operation, high reliability and operation fun. Features: Comfortable Holding. Allows natural stretching to reduces fatigue when you use the mouse. Unique Structure and Finger Groove. Allows your fingers to stretch and force more evenly and the comfortable finger groove makes the fingers more fit the key surface. 2.4G Wireless Technology. This advanced 2.4G wireless technology allows for a perfectly lag-free data transmission from your gaming mouse to your system. Three Level DPI Adjustable. Support 3 level adjustable DPI, 1000-1600-2400DPI, you can choose the DPI level as you please, to meet different needs. Bionic Tire Type Roller. Rubber wrapping with skin texture and comfortable oblique scale design, increase friction with the fingers, and deliver clearer stop