This is compact,mini, thin, lightweight scissor switch USB wired keyboard, fits right in your bag. It's plug and play, USB wired, slim design, small footprint on table, no more wrestling with finicky connections or batteries. The scissor key design provides good flexibility for the keys, making typing more clear and comfortable. It makes a quiet click/clack sound, it's near silence will make you pleasant when typing. Dimension: 28.5cm x 12cm (11.2 x 4.7 inch)(LxW) with 1.5M (4.9ft) wired cable USB connection System compatible with Windows XP/7/8/Vista, Win 10, Mac,Linux PC computer, laptop, tablet PC android.