Surface Pen, Surface Stylus Pen for Microsoft Writing, Drawing

High Compatible Model :
befen Surface Pen supports Surface 3/Surface 4/Surface Pro 3/Surface Pro 4/Surface Pro 5/Surface Pro 6/Surface Pro(2017)/Surface Book /Book 2/Surface laptop/Surface Studio/Surface Go etc. Please NOTE: The surface pro pen isn't compatible with surface pro 1/surface pro 2/RT. 

How to Use :
To awaken the Microsoft surface pro pen from sleep mode, press either Eraser or Alt buttons. The surface pen will be active and ready to use.

Replacing the nib :
With the nib replacement tool in one hand, and the pen in another, bring the tool over the nib of the pen.
Pinch the tool closed around the nib, and slowly pull the nib out of the body of the pen.
To place a new nib, use the nib replacement tool to remove a nib from the packaging, with the pointed end of the nib pinched in the tool, slide the new nib into the pen until the neck of the nib is not visible.
RECOMMENDED: Keep the unused nibs in the foam portion of the package.

Install the Battery :
Unscrew the top of the pen by turning it counter-clockwise.
Insert one battery, positive side down, into the battery compartment.
Replace the pen top by screwing back on, clockwise.

For Microsoft surface pen Package Included :
A Microsoft surface pro pen Pen
AAAA Super Alkaline Battery
Soft nib & Hard nib
nib Replacement Tool

Feature :
Voltage:1.5V
Current: 0.88mA
Power: 1.32mW
Working: 44KHz
Frequency: 18KHz