<s>
The	O
Zune	B-Device
Pad	I-Device
,	O
which	O
is	O
a	O
squircle	O
,	O
is	O
the	O
primary	O
control	O
mechanism	O
for	O
Zune	B-Library
4	O
,	O
8	O
,	O
16	O
,	O
80	O
and	O
120	O
.	O
</s>
<s>
The	O
pad	O
lets	O
users	O
of	O
this	O
device	O
scroll	B-Operating_System
through	O
their	O
song	O
list	O
with	O
the	O
use	O
of	O
their	O
finger	O
,	O
then	O
press	O
the	O
button	O
to	O
select	O
tracks	O
or	O
change	O
the	O
volume	B-Algorithm
.	O
</s>
<s>
It	O
was	O
designed	O
by	O
Microsoft	O
for	O
the	O
release	O
of	O
the	O
second	O
generation	O
Zune	B-Library
.	O
</s>
<s>
The	O
Zune	B-Device
Pad	I-Device
is	O
about	O
24mm	O
in	O
diameter	O
and	O
resembles	O
a	O
square	O
like	O
figure	O
.	O
</s>
<s>
It	O
comprises	O
a	O
touch-sensitive	B-Device
button	O
with	O
simulated	O
up	O
,	O
down	O
,	O
left	O
,	O
right	O
and	O
center	O
navigational	O
"	O
button	O
"	O
response	O
.	O
</s>
<s>
The	O
Zune	B-Device
Pad	I-Device
allows	O
the	O
user	O
to	O
coast	O
after	O
flicking	O
the	O
list	O
and	O
to	O
accelerate	O
through	O
the	O
list	O
with	O
repeated	O
flicks	O
,	O
unlike	O
direct	O
content	O
manipulation	O
interfaces	O
in	O
which	O
a	O
touch	O
immediately	O
grabs	O
and	O
stops	O
the	O
onscreen	O
content	O
.	O
</s>
<s>
Touching	O
or	O
clicking	O
the	O
Zune	B-Device
Pad	I-Device
will	O
cause	O
the	O
coasting	O
to	O
stop	O
.	O
</s>
<s>
The	O
Zune	B-Device
Pad	I-Device
is	O
a	O
capacitive	O
touchpad	B-Application
and	O
therefore	O
detection	O
is	O
dependent	O
upon	O
using	O
a	O
finger	O
.	O
</s>
<s>
This	O
works	O
well	O
unless	O
the	O
user	O
is	O
wearing	O
gloves	B-General_Concept
or	O
anything	O
that	O
the	O
touch	O
surface	O
cannot	O
"	O
read	O
"	O
.	O
</s>
<s>
The	O
user	O
cannot	O
adjust	O
the	O
sensitivity	O
and	O
scroll	B-Operating_System
speed	O
,	O
but	O
can	O
choose	O
to	O
turn	O
it	O
off	O
and	O
use	O
the	O
button	O
as	O
a	O
standard	O
directional	O
pad	O
instead	O
.	O
</s>
