<s>
The	O
Apple	B-Device
Mouse	I-Device
(	O
formerly	O
Mighty	B-Device
Mouse	I-Device
)	O
is	O
a	O
multi-control	O
USB	B-Protocol
mouse	B-Device
manufactured	O
by	O
Mitsumi	O
Electric	O
and	O
sold	O
by	O
Apple	O
Inc	O
.	O
</s>
<s>
It	O
was	O
announced	O
and	O
sold	O
for	O
the	O
first	O
time	O
on	O
August	O
2	O
,	O
2005	O
,	O
and	O
a	O
Bluetooth	B-Protocol
version	O
was	O
available	O
from	O
2006	O
to	O
2009	O
.	O
</s>
<s>
Before	O
the	O
Mighty	B-Device
Mouse	I-Device
,	O
Apple	O
had	O
sold	O
only	O
one-button	O
mice	O
with	O
its	O
computers	O
,	O
beginning	O
with	O
the	O
Apple	B-Device
Lisa	I-Device
22	O
years	O
earlier	O
.	O
</s>
<s>
The	O
Mighty	B-Device
Mouse	I-Device
supported	O
two	O
buttons	O
,	O
and	O
a	O
miniature	O
trackball	B-Device
for	O
scrolling	O
.	O
</s>
<s>
On	O
October	O
20	O
,	O
2009	O
,	O
the	O
wireless	O
Mighty	B-Device
Mouse	I-Device
was	O
discontinued	O
and	O
replaced	O
by	O
the	O
multi-touch	B-Application
Magic	O
Mouse	B-Device
.	O
</s>
<s>
The	O
wired	O
version	O
of	O
the	O
device	O
remained	O
available	O
,	O
but	O
was	O
renamed	O
the	O
Apple	B-Device
Mouse	I-Device
,	O
due	O
to	O
trademark	O
issues	O
with	O
another	O
manufacturer	O
of	O
a	O
device	O
named	O
Mighty	B-Device
Mouse	I-Device
.	O
</s>
<s>
As	O
of	O
June	O
5	O
,	O
2017	O
,	O
the	O
Apple	B-Device
Mouse	I-Device
is	O
no	O
longer	O
available	O
to	O
buy	O
on	O
Apple	O
's	O
website	O
.	O
</s>
<s>
The	O
Mighty	B-Device
Mouse	I-Device
is	O
made	O
of	O
white	O
plastic	O
and	O
has	O
a	O
recessed	O
Apple	O
logo	B-Device
on	O
the	O
mouse	B-Device
's	O
face	O
.	O
</s>
<s>
The	O
mouse	B-Device
has	O
four	O
functional	O
controls	O
:	O
a	O
left	O
capacitive	B-Device
sensor	I-Device
,	O
a	O
right	O
capacitive	B-Device
sensor	I-Device
,	O
a	O
track	B-Device
ball	I-Device
with	O
a	O
pressure	O
sensor	O
and	O
side	O
squeeze	O
sensors	O
.	O
</s>
<s>
The	O
track	B-Device
ball	I-Device
enables	O
users	O
to	O
scroll	O
a	O
page	O
or	O
document	O
in	O
any	O
direction	O
,	O
including	O
diagonally	O
.	O
</s>
<s>
Instead	O
of	O
mechanical	O
buttons	O
,	O
the	O
touch-sensitive	O
topshell	O
(	O
mentioned	O
below	O
)	O
and	O
the	O
pressure-sensing	O
trackball	B-Device
allow	O
the	O
mouse	B-Device
to	O
detect	O
which	O
side	O
is	O
being	O
touched	O
or	O
whether	O
the	O
trackball	B-Device
is	O
being	O
held	O
in	O
.	O
</s>
<s>
The	O
mouse	B-Device
emits	O
a	O
faint	O
clicking	O
sound	O
when	O
the	O
scroll	O
ball	O
is	O
rolled	O
or	O
the	O
side	O
squeeze	O
sensors	O
are	O
depressed	O
,	O
but	O
this	O
is	O
not	O
directly	O
caused	O
by	O
the	O
ball	O
moving	O
or	O
side	O
buttons	O
being	O
pressed	O
;	O
the	O
sound	O
is	O
actually	O
produced	O
by	O
a	O
tiny	O
speaker	O
inside	O
the	O
mouse	B-Device
.	O
</s>
<s>
There	O
is	O
no	O
way	O
to	O
disable	O
this	O
feature	O
other	O
than	O
physically	O
disabling	O
the	O
speaker	O
inside	O
the	O
mouse	B-Device
.	O
</s>
<s>
Currently	O
,	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
is	O
the	O
only	O
operating	O
system	O
that	O
fully	O
supports	O
the	O
mouse	B-Device
without	O
third-party	O
software	O
.	O
</s>
<s>
When	O
used	O
with	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
the	O
sensors	O
can	O
be	O
set	O
to	O
launch	O
applications	B-Application
or	O
trigger	O
features	O
of	O
the	O
Apple	O
operating	O
system	O
,	O
such	O
as	O
Dashboard	B-Application
and	O
Exposé	O
.	O
</s>
<s>
If	O
not	O
used	O
with	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
the	O
mouse	B-Device
behaves	O
as	O
a	O
four	O
"	O
button	O
"	O
mouse	B-Device
with	O
a	O
vertical	O
and	O
horizontal	O
scroll	O
wheel	O
.	O
</s>
<s>
The	O
Mighty	B-Device
Mouse	I-Device
does	O
not	O
report	O
whether	O
the	O
right	O
and	O
left	O
sensors	O
are	O
activated	O
simultaneously	O
.	O
</s>
<s>
It	O
reports	O
a	O
right-click	O
only	O
when	O
there	O
is	O
no	O
finger	O
contact	O
on	O
the	O
left	O
side	O
of	O
the	O
mouse	B-Device
.	O
</s>
<s>
Thus	O
a	O
right-click	O
requires	O
lifting	O
the	O
finger	O
off	O
the	O
mouse	B-Device
,	O
then	O
right-clicking	O
.	O
</s>
<s>
This	O
also	O
means	O
that	O
the	O
Mighty	B-Device
Mouse	I-Device
cannot	O
support	O
mouse	B-Device
chording	O
,	O
used	O
by	O
CAD	B-Application
software	I-Application
,	O
games	O
,	O
and	O
other	O
applications	B-Application
where	O
multiple	O
functions	O
are	O
mapped	O
to	O
the	O
mouse	B-Device
.	O
</s>
<s>
Although	O
the	O
Mighty	B-Device
Mouse	I-Device
can	O
sense	O
both	O
right	O
and	O
left	O
clicks	O
,	O
it	O
is	O
not	O
possible	O
to	O
press	O
both	O
sensors	O
simultaneously	O
.	O
</s>
<s>
The	O
user	O
must	O
learn	O
to	O
lift	O
the	O
left	O
finger	O
off	O
the	O
sensor	O
surface	O
before	O
attempting	O
a	O
right-mouse	O
click	O
.	O
</s>
<s>
While	O
there	O
are	O
methods	O
to	O
clean	O
the	O
ball	O
without	O
dismantling	O
the	O
mouse	B-Device
some	O
users	O
have	O
complained	O
that	O
the	O
Mighty	B-Device
Mouse	I-Device
is	O
difficult	O
to	O
clean	O
because	O
the	O
scroll	O
ball	O
mechanism	O
is	O
hard	O
to	O
take	O
apart	O
.	O
</s>
<s>
Prior	O
to	O
launching	O
the	O
device	O
,	O
Apple	O
received	O
a	O
license	O
to	O
the	O
name	O
"	O
Mighty	B-Device
Mouse	I-Device
"	O
from	O
Viacom	O
,	O
and	O
subsequently	O
CBS	O
Operations	O
,	O
as	O
owner	O
of	O
the	O
Mighty	B-Device
Mouse	I-Device
cartoon	O
series	O
,	O
the	O
title	O
having	O
been	O
registered	O
in	O
the	O
US	O
as	O
a	O
trademark	O
with	O
respect	O
to	O
various	O
merchandise	O
(	O
such	O
as	O
T-shirts	O
and	O
multivitamins	O
)	O
associated	O
with	O
the	O
character	O
.	O
</s>
<s>
However	O
,	O
the	O
trademark	O
did	O
not	O
cover	O
computer	O
peripherals	O
,	O
and	O
CBS	O
did	O
not	O
apply	O
to	O
trademark	O
the	O
term	O
in	O
the	O
US	O
with	O
respect	O
to	O
computer	B-Device
mice	I-Device
until	O
mid-2007	O
.	O
</s>
<s>
On	O
May	O
21	O
,	O
2008	O
,	O
it	O
was	O
announced	O
that	O
Man	O
&	O
Machine	O
Inc.	O
,	O
a	O
supplier	O
of	O
keyboards	O
and	O
mice	O
to	O
laboratories	O
and	O
hospitals	O
,	O
had	O
sued	O
Apple	O
Inc	O
.	O
for	O
trademark	O
infringement	O
over	O
its	O
use	O
of	O
the	O
name	O
Mighty	B-Device
Mouse	I-Device
.	O
</s>
<s>
Man	O
&	O
Machine	O
Inc	O
.	O
had	O
four	O
registered	O
or	O
pending	O
trademarks	O
on	O
various	O
computer	O
pointing	O
related	O
technologies	O
,	O
including	O
"	O
Cool	O
Mouse	B-Device
"	O
,	O
"	O
Really	O
Cool	O
"	O
,	O
and	O
"	O
Man	O
and	O
Machine	O
and	O
Design	O
"	O
.	O
</s>
<s>
The	O
particular	O
Mighty	B-Device
Mouse	I-Device
trademark	O
in	O
dispute	O
was	O
first	O
filed	O
by	O
Man	O
&	O
Machine	O
Inc.	O
,	O
on	O
December	O
18	O
,	O
2007	O
,	O
with	O
the	O
description	O
"	O
Computer	O
cursor	O
control	O
devices	O
,	O
namely	O
,	O
computer	B-Device
mice	I-Device
"	O
—	O
after	O
CBS	O
's	O
filing	O
,	O
but	O
claiming	O
first	O
use	O
in	O
2004	O
,	O
before	O
the	O
introduction	O
of	O
the	O
Apple	O
device	O
.	O
</s>
<s>
There	O
also	O
was	O
another	O
scroll	O
mouse	B-Device
named	O
Mighty	B-Device
Mouse	I-Device
developed	O
by	O
NTT	O
and	O
ETH	O
Zürich	O
in	O
1985	O
.	O
</s>
<s>
Following	O
opposition	O
proceedings	O
on	O
both	O
sides	O
against	O
the	O
other	O
,	O
CBS	O
subsequently	O
withdrew	O
its	O
application	O
,	O
allowing	O
Man	O
&	O
Machine	O
to	O
register	O
the	O
US	O
trademark	O
for	O
computer	B-Device
mice	I-Device
.	O
</s>
<s>
As	O
a	O
result	O
,	O
Apple	O
stopped	O
selling	O
mice	O
under	O
the	O
"	O
Mighty	B-Device
Mouse	I-Device
"	O
name	O
on	O
October	O
20	O
,	O
2009	O
,	O
when	O
it	O
introduced	O
the	O
wireless	O
Magic	O
Mouse	B-Device
and	O
renamed	O
the	O
existing	O
wired	O
mouse	B-Device
the	O
"	O
Apple	B-Device
Mouse	I-Device
"	O
.	O
</s>
<s>
Incidentally	O
,	O
CBS	O
was	O
successful	O
in	O
registering	O
"	O
Mighty	B-Device
Mouse	I-Device
"	O
as	O
a	O
trademark	O
for	O
computer	B-Device
mice	I-Device
in	O
some	O
other	O
countries	O
,	O
including	O
Canada	O
,	O
although	O
Apple	O
nevertheless	O
chose	O
to	O
change	O
its	O
product	O
name	O
internationally	O
.	O
</s>
