Specification:1. Resolution: 1000/1600/2400/3200dpi adjustable2. Button: 7buttons(DPI switch/scroll wheel/ left /right/one key back to desktop/ previous page/next page button)3. Size: 115*87*58mm(L*W*H)4. Weight: 103g5. Interface: USB Wired6. Color: Black/ White7. System support: Windows / for MacFeatures:1. The adjustable DPI allows you to change the sensitivity of the mouse's pointer speed.2. Ergonomic vertical design, efectively remitting and preventing carpal tunnel syndrome, just say goodbye to the "Mouse Hand"3. "Show desktop" button, allows you to get back to your desktop just by an easy click on the mouse, convenient for office and game users.Package included:1x USB Vertical Mouse