With Surface, you can easily switch between using touch,  a keyboard, a mouse, or a pen.


  •   Touch. You can use your fingers  on the touchscreen, the same  as you would on a smartphone.

For example,  drag  your finger across  the screen  to scroll. For demos of the gestures you can use, see The Surface touchscreen on Surface.com. You can also type on the touchscreen—see How to use the Surface touc keyboard on Surface.com.


  • Type Cover keyboard and touchpad. The Type Cover for Surface Pro 4 (sold separately) clicks into place when you want to type and folds back out of the way when you want to use your Surface as a tablet.  Because  the Cover is perfectly  sized for your Surface Pro 4, closing it puts your Surface to sleep  while it protects the touchscreen. The Type Cover includes  a touchpad that supports Windows 10 gestures. For more  info, see Touchpad use and settings on Surface.com.
  • Surfac Pen. Take notes,  draw, and mark up documents using the Surface Pen that  comes  with your Surface Pro 4. Click the top  button once  to jot a quick note  in OneNote, double-click to take a screen  capture straight to OneNote, or hold the button down  for a second or two to open Cortana. Write, draw, and tap naturally  with the tip—while the tip is near  the screen, Surface ignores touches from your hand.  Flip the pen  around to erase  with the top  button. A button near the tip lets you right-click without changing your grip. For more  info, see Using Surface Pen (Surface Pro 4 version) on Surface.com. 
  • USB or Bluetooth® keyboard and mouse. See Connect a USB mouse, printer,  and more  and Add a Bluetooth device on Surface.com to learn more.

Source: Microsoft