<s>
The	O
Surface	B-Device
Pen	I-Device
is	O
an	O
active	B-Device
stylus	I-Device
and	O
digital	B-Device
pen	I-Device
developed	O
by	O
Microsoft	O
for	O
its	O
series	O
of	O
Surface	B-Device
computing	O
devices	O
.	O
</s>
<s>
It	O
is	O
designed	O
to	O
showcase	O
the	O
pen	O
computing	O
capabilities	O
of	O
Microsoft	O
's	O
Windows	O
8/8.1	O
and	O
Windows	B-Operating_System
10	I-Operating_System
operating	O
systems	O
.	O
</s>
<s>
The	O
first	O
Surface	B-Device
Pen	I-Device
was	O
introduced	O
in	O
2012	O
alongside	O
the	O
Surface	B-Device
Pro	I-Device
,	O
which	O
uses	O
Penabled	O
technology	O
designed	O
by	O
Wacom	O
.	O
</s>
<s>
It	O
features	O
one	O
physical	O
button	O
on	O
the	O
side	O
to	O
simulate	O
a	O
right-click	O
when	O
the	O
pen	O
comes	O
into	O
contact	O
with	O
the	O
display	O
,	O
as	O
well	O
as	O
an	O
eraser	B-Application
tip	O
at	O
the	O
top	O
of	O
the	O
Pen	O
that	O
removes	O
ink	O
strokes	O
when	O
it	O
comes	O
into	O
contact	O
with	O
the	O
display	O
.	O
</s>
<s>
It	O
was	O
bundled	O
with	O
the	O
Surface	B-Device
Pro	I-Device
and	O
Surface	B-Device
Pro	I-Device
2	I-Device
,	O
but	O
is	O
not	O
compatible	O
with	O
other	O
models	O
.	O
</s>
<s>
The	O
button	O
on	O
the	O
pen	O
doubles	O
as	O
a	O
magnetic	O
clip	O
which	O
can	O
be	O
used	O
to	O
attach	O
the	O
pen	O
to	O
the	O
Surface	B-Device
charging	O
port	O
(	O
although	O
not	O
while	O
simultaneously	O
charging	O
the	O
device	O
)	O
.	O
</s>
<s>
Although	O
the	O
technology	O
was	O
deprecated	O
with	O
subsequent	O
generations	O
and	O
is	O
now	O
branded	O
as	O
"	O
Pro	O
Pen	O
"	O
,	O
it	O
can	O
still	O
be	O
purchased	O
as	O
an	O
accessory	O
for	O
the	O
Surface	B-Device
Pro	I-Device
and	O
Surface	B-Device
Pro	I-Device
2	I-Device
as	O
well	O
as	O
other	O
Penabled-compatible	O
devices	O
such	O
as	O
those	O
from	O
Lenovo	B-Operating_System
ThinkPad	I-Operating_System
lineup	O
.	O
</s>
<s>
A	O
new	O
version	O
of	O
the	O
Surface	B-Device
Pen	I-Device
was	O
launched	O
in	O
2014	O
with	O
the	O
Surface	B-Device
Pro	I-Device
3	I-Device
.	O
</s>
<s>
Based	O
on	O
technology	O
developed	O
by	O
N-trig	B-Device
(	O
a	O
separate	O
company	O
at	O
the	O
time	O
,	O
though	O
subsequently	O
acquired	O
by	O
Microsoft	O
)	O
,	O
the	O
Surface	B-Device
Pro	I-Device
3	I-Device
version	O
lacks	O
the	O
eraser	B-Application
tip	O
present	O
in	O
the	O
previous	O
generation	O
;	O
erasing	O
is	O
done	O
by	O
drawing	O
over	O
the	O
ink	O
strokes	O
while	O
holding	O
down	O
one	O
of	O
two	O
physical	O
buttons	O
on	O
the	O
side	O
,	O
above	O
the	O
button	O
used	O
for	O
right-clicking	O
.	O
</s>
<s>
A	O
third	O
button	O
,	O
located	O
at	O
the	O
back	O
of	O
the	O
pen	O
,	O
sends	O
a	O
Bluetooth	B-Protocol
signal	O
to	O
a	O
paired	O
Surface	B-Device
PC	O
which	O
instantly	O
opens	O
OneNote	B-Application
,	O
even	O
when	O
the	O
device	O
is	O
locked	O
(	O
although	O
advanced	O
editing	O
functions	O
are	O
disabled	O
in	O
this	O
case	O
)	O
.	O
</s>
<s>
Unlike	O
the	O
Wacom-powered	O
Surface	B-Device
Pen	I-Device
,	O
it	O
requires	O
two	O
batteries	O
:	O
one	O
AAAA	B-Algorithm
battery	I-Algorithm
for	O
stylus	B-Device
operation	O
,	O
and	O
two	O
size	O
319	O
coin	B-Algorithm
cell	I-Algorithm
batteries	O
for	O
the	O
top	O
button	O
.	O
</s>
<s>
The	O
pen	O
is	O
included	O
with	O
all	O
Surface	B-Device
Pro	I-Device
3s	I-Device
but	O
is	O
also	O
compatible	O
with	O
and	O
available	O
as	O
an	O
optional	O
accessory	O
for	O
the	O
Surface	B-Device
3	I-Device
.	O
</s>
<s>
Unlike	O
the	O
previous	O
pen	O
,	O
this	O
version	O
can	O
be	O
stowed	O
away	O
by	O
sliding	O
it	O
into	O
a	O
self-adhesive	O
felt	O
loop	O
which	O
can	O
be	O
attached	O
to	O
the	O
Surface	B-Device
Type	O
Cover	O
(	O
optional	O
extra	O
)	O
.	O
</s>
<s>
It	O
is	O
also	O
compatible	O
with	O
all	O
subsequent	O
Surface	B-Device
PCs	O
,	O
which	O
uses	O
the	O
same	O
basic	O
technology	O
.	O
</s>
<s>
Surface	B-Device
Pro	I-Device
3	I-Device
Pen	O
is	O
able	O
to	O
detect	O
256	O
levels	O
of	O
pressure	O
on	O
its	O
tip	O
.	O
</s>
<s>
With	O
the	O
release	O
of	O
the	O
Surface	B-Device
Pro	I-Device
4	I-Device
,	O
Microsoft	O
introduced	O
an	O
updated	O
version	O
of	O
the	O
Surface	B-Device
Pen	I-Device
.	O
</s>
<s>
While	O
using	O
the	O
same	O
technology	O
as	O
the	O
Surface	B-Device
Pro	I-Device
3	I-Device
pen	O
,	O
it	O
has	O
only	O
one	O
(	O
non-customizable	O
)	O
button	O
on	O
the	O
side	O
rather	O
than	O
two	O
,	O
and	O
brings	O
back	O
the	O
top-mounted	O
eraser	B-Application
(	O
retaining	O
the	O
button	O
functionality	O
)	O
and	O
also	O
allows	O
customizing	O
the	O
button	O
(	O
called	O
the	O
"	O
magic	O
button	O
"	O
)	O
to	O
perform	O
different	O
actions	O
.	O
</s>
<s>
The	O
default	O
options	O
are	O
:	O
single-click	O
opens	O
OneNote	B-Application
,	O
double-click	O
takes	O
a	O
screenshot	B-Application
,	O
press-and-hold	O
launches	O
Cortana	B-Application
.	O
</s>
<s>
This	O
generation	O
saw	O
the	O
return	O
of	O
the	O
magnetic	O
attachment	O
,	O
although	O
this	O
time	O
the	O
pen	O
snaps	O
into	O
place	O
on	O
the	O
opposite	O
side	O
of	O
the	O
Surface	B-Device
device	O
,	O
thereby	O
freeing	O
up	O
the	O
charging	O
port	O
(	O
now	O
called	O
the	O
Surface	B-Device
Connect	O
port	O
)	O
.	O
</s>
<s>
This	O
version	O
of	O
the	O
pen	O
is	O
bundled	O
with	O
the	O
Surface	B-Device
Pro	I-Device
4	I-Device
,	O
the	O
Surface	B-Device
Book	I-Device
and	O
the	O
Surface	B-Device
Studio	I-Device
;	O
it	O
can	O
also	O
be	O
purchased	O
separately	O
for	O
the	O
Surface	B-Device
Laptop	I-Device
.	O
</s>
<s>
It	O
is	O
also	O
compatible	O
with	O
the	O
Surface	B-Device
Pro	I-Device
3	I-Device
and	O
Surface	B-Device
3	I-Device
.	O
</s>
<s>
Latency	O
drops	O
to	O
just	O
45	O
milliseconds	O
in	O
comparison	O
with	O
Surface	B-Device
Pro	I-Device
3	I-Device
Pen	O
.	O
</s>
<s>
The	O
tips	O
are	O
marked	O
using	O
the	O
same	O
nomenclature	O
used	O
for	O
pencil	B-Device
hardness	O
2H	O
,	O
H	O
,	O
HB	O
,	O
B	O
.	O
</s>
<s>
The	O
Surface	B-Device
Hub	O
,	O
released	O
in	O
June	O
2015	O
,	O
ships	O
with	O
a	O
pair	O
of	O
digital	B-Device
pens	I-Device
that	O
employ	O
technology	O
similar	O
to	O
the	O
Surface	B-Device
Pen	I-Device
for	O
PCs	O
.	O
</s>
<s>
Holstered	O
to	O
each	O
side	O
of	O
the	O
device	O
,	O
they	O
have	O
eraser	B-Application
tips	O
but	O
no	O
extra	O
buttons	O
.	O
</s>
<s>
They	O
integrate	O
with	O
the	O
built-in	O
Whiteboard	O
app	O
and	O
,	O
unlike	O
the	O
Surface	B-Device
Pen	I-Device
,	O
can	O
both	O
be	O
used	O
for	O
simultaneously	O
inking	O
by	O
multiple	O
users	O
.	O
</s>
<s>
With	O
the	O
release	O
of	O
the	O
Surface	B-Device
Pro	I-Device
5th	I-Device
gen	I-Device
,	O
Microsoft	O
introduced	O
an	O
updated	O
version	O
of	O
the	O
Surface	B-Device
Pen	I-Device
.	O
</s>
<s>
Unlike	O
previous	O
generations	O
of	O
the	O
Surface	B-Device
Pen	I-Device
,	O
this	O
version	O
of	O
the	O
pen	O
is	O
sold	O
separately	O
at	O
a	O
higher	O
price	O
of	O
$99	O
.	O
</s>
<s>
It	O
is	O
also	O
compatible	O
with	O
Surface	B-Device
3	I-Device
,	O
Surface	B-Device
Pro	I-Device
3	I-Device
,	O
Surface	B-Device
Pro	I-Device
4	I-Device
,	O
Surface	B-Device
Pro	I-Device
6	I-Device
,	O
Surface	B-Device
Pro	I-Device
7	I-Device
,	O
Surface	B-Device
Pro	I-Device
X	I-Device
,	O
Surface	B-Device
Go	I-Device
,	O
Surface	B-Device
Go	I-Device
2	I-Device
,	O
Surface	B-Device
Studio	I-Device
,	O
Surface	B-Device
Studio	I-Device
2	I-Device
,	O
Surface	B-Device
Book	I-Device
,	O
Surface	B-Device
Book	I-Device
2	I-Device
,	O
Surface	B-Device
Book	I-Device
3	I-Device
,	O
Surface	B-Device
Laptop	I-Device
,	O
Surface	B-Device
Laptop	I-Device
2	I-Device
and	O
Surface	B-Device
Laptop	I-Device
3	I-Device
.	O
</s>
<s>
The	O
new	O
Surface	B-Device
Pen	I-Device
is	O
able	O
to	O
detect	O
4096	O
levels	O
of	O
pressure	O
and	O
has	O
1024	O
levels	O
of	O
tilt	O
sensitivity	O
,	O
which	O
was	O
not	O
available	O
in	O
previous	O
generations	O
.	O
</s>
<s>
It	O
has	O
21	O
milliseconds	O
of	O
latency	O
,	O
making	O
it	O
"	O
the	O
fastest	O
digital	B-Device
pen	I-Device
on	O
the	O
planet	O
”	O
at	O
the	O
time	O
of	O
release	O
,	O
according	O
to	O
Microsoft	O
.	O
</s>
