Power  button


Press the power  button to turn your Surface Pro 4 on. You can also use the power  button to put it to sleep  and wake it when youre ready to start  working again.

Touchscreen


Use the 12.3 display, with its 3:2 aspect ratio and 2736 x 1824 resolution, to watch HD movies, brows the web, and use your favorite apps.


The new Surface G5 touc processor provides up to twice the touc accurac of Surface Pro 3 and lets you use your fingers to selec items, zoom  in, and move  things  around. For more  info, see Surface touchscreen on Surface.com.

Surfac Pen


Enjoy a natural  writing experience with a pen  that  feels like an actual  pen. Use Surface Pen to launc Cortana in Windows or open OneNote and quickly jot dow notes or take screenshots.


See Using Surface Pen (Surface Pro 4 version) on Surface.com for more  info.

Kickstand


Flip out the kickstand  and work or play comfortably at your desk, on the couch, or while giving a hands-free presentation.

Wi-Fi and

Bluetooth®


Surface Pro 4 supports standard Wi-Fi protocols (802.11a/b/g/n/ac) and Bluetooth

4.0. Connect to a wireless network and use Bluetooth devices  like mice, printers,  and headsets.

For more  info, see Add a Bluetooth device and Connect Surface to a wireless network on Surface.com.

Cameras


Surface Pro 4 has two cameras for taking  photos and recording video: an 8- megapixel rear-facing camera with autofocus and a 5-megapixel, high-resolution, front-facing camera.  Both cameras record  video in 1080p, with a 16:9 aspect ratio. Privacy lights are located on the right side of bot cameras.


Surface Pro 4 also has an infrared  (IR) face-detection camera so you can sign in to Window without typing  a password. For more  info, see Window Hello on Surface.com.


For more  camera info, see Take photos and video with Surface and Using autofocus on Surface 3, Surface Pro 4, and Surface Book on Surface.com.

Microphones


Surface Pro 4 has both a front and a back microphone. Use the front microphone for calls and recordings. Its noise-canceling feature is optimized for use with Skype and Cortana.

Stereo speakers


Stere front speakers provide an immersive  music and movie playbac experience. To learn more,  see Surface sound, volume, and audi accessories on Surface.com.


Source Microsoft