Specification: Type: left hand wired vertical mouse Number of buttons: 6 Optical resolution: 1600dpi Interface: USB Adjustable resolution: third gear (800-1200-1600) Whether to support ergonomics: support Size: about 125*75*62mm/ 4.92*2.95*2.44in Package List: 1*Mouse

?SATISFACTION GUARANTEE? We care for every customer’s feeling.If this product does not meet or exceed your expectations,please send it back for a 100% refund no questions asked. ?Multi-Device Support?This vertical optical mouse with ergonomic design, through comfortable little finger and thumb support and contoured palm support, seamless, healthy and efficient to ease the tension of the wrist. ?Powerful Function?Our Wired Vertical Mouse is very suitable for game enthusiasts, programmers, office workers, surfing teenagers. ?Excellent quality and durability?When using the mouse, the body design will make your wrist comfortable.Plug and play mode, no driver required. ?Your Best Choice?Ergonomically designed optical tracking technology that works on many different surfaces and is ideal for home, office or gaming.