<s>
AirTag	B-Operating_System
is	O
a	O
tracking	B-Operating_System
device	I-Operating_System
developed	O
by	O
Apple	O
.	O
</s>
<s>
AirTag	B-Operating_System
is	O
designed	O
to	O
act	O
as	O
a	O
key	O
finder	O
,	O
which	O
helps	O
people	O
find	O
personal	O
objects	O
(	O
e.g.	O
</s>
<s>
To	O
locate	O
lost	O
items	O
,	O
AirTags	B-Operating_System
use	O
Apple	O
's	O
crowdsourced	O
Find	B-Operating_System
My	I-Operating_System
network	I-Operating_System
,	O
estimated	O
in	O
early	O
2021	O
to	O
consist	O
of	O
approximately	O
one	O
billion	O
devices	O
worldwide	O
that	O
detect	O
and	O
anonymously	O
report	O
emitted	O
Bluetooth	B-Protocol
signals	O
.	O
</s>
<s>
AirTags	B-Operating_System
are	O
compatible	O
with	O
any	O
iPhone	B-Device
,	O
iPad	B-Device
,	O
or	O
iPod	B-Device
Touch	I-Device
device	O
capable	O
of	O
running	O
iOS/iPadOS	O
14.5	O
or	O
later	O
,	O
including	O
iPhone	B-Device
6S	O
or	O
later	O
(	O
including	O
iPhone	B-Operating_System
SE	I-Operating_System
1	I-Operating_System
,	O
2	B-Operating_System
and	O
3	B-Operating_System
)	O
.	O
</s>
<s>
Using	O
the	O
built-in	O
U1	O
chip	O
on	O
iPhone	B-Device
11	O
or	O
later	O
(	O
except	O
iPhone	B-Operating_System
SE	I-Operating_System
models	O
)	O
,	O
users	O
can	O
more	O
precisely	O
locate	O
items	O
using	O
UWB	O
(	O
ultra-wideband	O
)	O
technology	O
.	O
</s>
<s>
AirTag	B-Operating_System
was	O
announced	O
on	O
April	O
20	O
,	O
2021	O
,	O
made	O
available	O
for	O
pre-order	O
on	O
April	O
23	O
,	O
and	O
released	O
on	O
April	O
30	O
.	O
</s>
<s>
In	O
February	O
2020	O
,	O
it	O
was	O
reported	O
that	O
Asahi	O
Kasei	O
was	O
prepared	O
to	O
supply	O
Apple	O
with	O
tens	O
of	O
millions	O
of	O
ultra-wideband	O
(	O
UWB	O
)	O
parts	O
for	O
the	O
rumored	O
AirTag	B-Operating_System
in	O
the	O
second	O
and	O
third	O
quarters	O
of	O
2020	O
,	O
though	O
the	O
shipment	O
was	O
ultimately	O
delayed	O
.	O
</s>
<s>
On	O
April	O
2	B-Operating_System
,	O
2020	O
,	O
a	O
YouTube	O
video	O
on	O
Apple	O
Support	O
page	O
also	O
confirmed	O
AirTag	B-Operating_System
.	O
</s>
<s>
In	O
Apple	O
's	O
iOS	O
14.0	O
release	O
,	O
code	O
was	O
discovered	O
that	O
described	O
the	O
reusable	O
and	O
removable	O
battery	O
that	O
would	O
be	O
used	O
in	O
the	O
AirTag	B-Operating_System
.	O
</s>
<s>
In	O
March	O
2021	O
,	O
MacWorld	O
stated	O
that	O
iOS	B-Operating_System
14.5	I-Operating_System
beta	O
's	O
Find	B-Operating_System
My	I-Operating_System
user	O
interface	O
included	O
"	O
Items	O
"	O
and	O
"	O
Accessories	O
"	O
features	O
meant	O
for	O
AirTag	B-Operating_System
support	O
for	O
a	O
user	O
's	O
"	O
backpack	O
,	O
luggage	O
,	O
headphones	O
"	O
and	O
other	O
objects	O
.	O
</s>
<s>
AppleInsider	O
noted	O
that	O
the	O
beta	O
included	O
safety	O
warnings	O
for	O
"	O
unauthorized	O
AirTags	B-Operating_System
"	O
persistently	O
in	O
the	O
user	O
's	O
vicinity	O
.	O
</s>
<s>
AirTags	B-Operating_System
can	O
be	O
interacted	O
with	O
using	O
the	O
Find	B-Operating_System
My	I-Operating_System
app	O
.	O
</s>
<s>
Users	O
may	O
trigger	O
the	O
AirTag	B-Operating_System
to	O
play	O
a	O
sound	O
from	O
the	O
app	O
.	O
</s>
<s>
iPhones	B-Device
equipped	O
with	O
the	O
U1	O
chip	O
can	O
use	O
"	O
Precision	O
Tracking	O
"	O
to	O
provide	O
direction	O
to	O
and	O
precise	O
distance	O
from	O
an	O
AirTag	B-Operating_System
.	O
</s>
<s>
AirTags	B-Operating_System
are	O
not	O
satellite	O
navigation	O
devices	O
.	O
</s>
<s>
AirTags	B-Operating_System
are	O
located	O
on	O
a	O
map	O
within	O
the	O
Find	B-Operating_System
My	I-Operating_System
app	O
by	O
utilizing	O
Bluetooth	B-Protocol
signals	O
from	O
other	O
anonymous	O
iOS	B-Application
and	O
iPadOS	B-Operating_System
devices	O
out	O
in	O
the	O
world	O
.	O
</s>
<s>
To	O
help	O
prevent	O
unwanted	O
tracking	O
,	O
an	O
iOS/iPadOS	O
device	O
will	O
alert	O
their	O
owner	O
if	O
someone	O
else	O
's	O
AirTag	B-Operating_System
seems	O
to	O
be	O
with	O
them	O
,	O
instead	O
of	O
with	O
the	O
AirTag	B-Operating_System
's	O
owner	O
,	O
for	O
too	O
long	O
.	O
</s>
<s>
If	O
an	O
AirTag	B-Operating_System
is	O
out	O
of	O
range	O
of	O
any	O
Apple	O
device	O
for	O
more	O
than	O
8	O
to	O
24	O
hours	O
,	O
it	O
will	O
begin	O
to	O
beep	O
to	O
alert	O
a	O
person	O
that	O
an	O
AirTag	B-Operating_System
may	O
have	O
been	O
placed	O
in	O
their	O
possessions	O
.	O
</s>
<s>
Users	O
can	O
mark	O
an	O
AirTag	B-Operating_System
as	O
lost	O
and	O
provide	O
a	O
phone	O
number	O
and	O
a	O
message	O
.	O
</s>
<s>
Any	O
iPhone	B-Device
user	O
can	O
see	O
this	O
phone	O
number	O
and	O
message	O
with	O
the	O
"	O
identify	O
lost	O
item	O
"	O
feature	O
within	O
the	O
Find	B-Operating_System
My	I-Operating_System
app	O
,	O
which	O
utilizes	O
near-field	O
communication	O
(	O
NFC	O
)	O
technology	O
.	O
</s>
<s>
Additionally	O
,	O
Android	B-Application
and	O
Windows	O
10	O
Mobile	O
phones	O
with	O
NFC	O
can	O
identify	O
an	O
AirTag	B-Operating_System
with	O
a	O
tap	O
,	O
which	O
will	O
redirect	O
to	O
a	O
website	O
containing	O
the	O
message	O
and	O
phone	O
number	O
.	O
</s>
<s>
AirTag	B-Operating_System
requires	O
an	O
Apple	B-General_Concept
ID	I-General_Concept
and	O
iOS	B-Application
or	O
iPadOS	B-Operating_System
14.5	O
or	O
later	O
.	O
</s>
<s>
It	O
uses	O
the	O
CR2032	B-Algorithm
button	B-Algorithm
cell	I-Algorithm
,	O
replaceable	O
with	O
one	O
year	O
of	O
battery	O
life	O
(	O
though	O
batteries	O
with	O
child-resistant	O
bitterants	O
cannot	O
be	O
used	O
due	O
to	O
the	O
design	O
of	O
the	O
AirTag	B-Operating_System
battery	B-Algorithm
terminal	I-Algorithm
)	O
.	O
</s>
<s>
The	O
maximum	O
range	O
of	O
Bluetooth	B-Protocol
tracking	O
is	O
estimated	O
to	O
be	O
around	O
100	O
meters	O
.	O
</s>
<s>
The	O
water-resistance	O
of	O
an	O
AirTag	B-Operating_System
is	O
rated	O
IP67	O
water	O
and	O
dust	O
;	O
an	O
AirTag	B-Operating_System
can	O
withstand	O
30	O
minutes	O
of	O
water	O
immersion	O
in	O
standard	O
laboratory	O
conditions	O
.	O
</s>
<s>
Each	O
Apple	B-General_Concept
ID	I-General_Concept
is	O
limited	O
to	O
16	O
AirTags	B-Operating_System
.	O
</s>
<s>
Apple	O
provides	O
no	O
way	O
for	O
the	O
user	O
to	O
force	O
AirTag	B-Operating_System
to	O
carry	O
out	O
a	O
firmware	O
update	O
.	O
</s>
<s>
Firmware	O
updates	O
may	O
happen	O
automatically	O
whenever	O
an	O
AirTag	B-Operating_System
is	O
in	O
range	O
of	O
an	O
iPhone	B-Device
(	O
running	O
iOS	B-Operating_System
14.5	I-Operating_System
or	O
later	O
)	O
that	O
it	O
has	O
been	O
paired	O
with	O
,	O
and	O
when	O
both	O
have	O
sufficient	O
battery	O
.	O
</s>
<s>
Firmware	O
Version	O
(	O
Build	O
Number	O
)	O
:Release	O
Date:Changes:1.0.22530	O
April	O
2021Initial	O
release	O
build	O
at	O
launch1.0.276	O
(	O
1A276d	O
)	O
3	B-Operating_System
June	O
2021Privacy	O
update	O
that	O
changes	O
the	O
period	O
of	O
time	O
required	O
by	O
an	O
AirTag	B-Operating_System
to	O
play	O
a	O
sound	O
after	O
it	O
’s	O
been	O
separated	O
from	O
its	O
owner	O
.	O
</s>
<s>
Comes	O
with	O
a	O
random	O
timeframe	O
that	O
ranges	O
between	O
8	O
and	O
24	O
hours	O
since	O
separation.1.0.276	O
(	O
1A287b	O
)	O
22	O
June	O
2021Unknown1.0.291	O
(	O
1A291a	O
)	O
26	O
August	O
2021Unknown1.0.291	O
(	O
1A291c	O
)	O
31	O
August	O
2021Unknown1.0.291	O
(	O
1A291e	O
)	O
7	O
September	O
2021Unknown1.0.301	O
(	O
1A301	O
)	O
26	O
April	O
2022Tuning	O
the	O
unwanted	O
tracking	O
sound	O
to	O
more	O
easily	O
locate	O
an	O
unknown	O
AirTag.2.0.24	O
(	O
2A24e	O
)	O
10	O
November	O
2022Enables	O
Precision	O
Finding	O
to	O
help	O
locate	O
an	O
unknown	O
AirTag	B-Operating_System
detected	O
moving	O
with	O
the	O
a	O
person	O
.	O
</s>
<s>
If	O
the	O
iPhone	B-Device
is	O
awake	O
,	O
a	O
notification	O
alerts	O
the	O
iPhone	B-Device
user	O
when	O
an	O
AirTag	B-Operating_System
that	O
's	O
separated	O
from	O
its	O
owner	O
is	O
traveling	O
with	O
the	O
user	O
and	O
emitting	O
a	O
sound	O
to	O
indicate	O
it	O
has	O
been	O
moved.2.0.36	O
(	O
2A36	O
)	O
12	O
December	O
2022Resolves	O
an	O
issue	O
with	O
the	O
accelerometer	O
not	O
activating	O
in	O
certain	O
scenarios	O
.	O
</s>
<s>
AirTags	B-Operating_System
have	O
become	O
extremely	O
popular	O
among	O
travelers	O
to	O
track	O
checked	O
luggage	O
on	O
flights	O
and	O
empower	O
them	O
when	O
luggage	O
is	O
lost	O
by	O
carriers	O
.	O
</s>
<s>
In	O
response	O
,	O
Lufthansa	O
stated	O
that	O
AirTags	B-Operating_System
were	O
not	O
permissible	O
in	O
luggage	O
checked	O
with	O
the	O
carrier	O
.	O
</s>
<s>
The	O
Federal	O
Aviation	O
Administration	O
has	O
ruled	O
that	O
storing	O
AirTags	B-Operating_System
in	O
checked	O
luggage	O
is	O
permitted	O
and	O
not	O
a	O
safety	O
hazard	O
despite	O
containing	O
batteries	O
.	O
</s>
<s>
Concerns	O
included	O
the	O
built-in	O
audible	O
alarm	O
taking	O
three	O
days	O
to	O
sound	O
,	O
and	O
the	O
fact	O
that	O
most	O
Americans	O
had	O
Android	B-Application
devices	O
that	O
would	O
not	O
receive	O
alerts	O
about	O
nearby	O
AirTags	B-Operating_System
that	O
iPhone	B-Device
devices	O
receive	O
.	O
</s>
<s>
AirTags	B-Operating_System
cannot	O
have	O
most	O
of	O
their	O
components	O
replaced	O
correctly	O
,	O
but	O
it	O
has	O
been	O
found	O
that	O
AirTags	B-Operating_System
with	O
their	O
speakers	O
forcibly	O
removed	O
from	O
the	O
rest	O
of	O
the	O
components	O
were	O
being	O
used	O
to	O
track	O
people	O
.	O
</s>
<s>
The	O
AirTag	B-Operating_System
cannot	O
detect	O
this	O
change	O
,	O
making	O
it	O
harder	O
for	O
people	O
to	O
find	O
out	O
that	O
an	O
AirTag	B-Operating_System
had	O
been	O
stalking	O
them	O
.	O
</s>
<s>
AirTags	B-Operating_System
with	O
their	O
speakers	O
removed	O
have	O
been	O
found	O
for	O
sale	O
on	O
sites	O
like	O
eBay	B-Application
and	O
Etsy	O
.	O
</s>
<s>
In	O
January	O
2022	O
,	O
BBC	O
News	O
spoke	O
to	O
six	O
women	O
who	O
stated	O
that	O
they	O
found	O
unregistered	O
AirTags	B-Operating_System
inside	O
things	O
such	O
as	O
cars	O
and	O
bags	O
.	O
</s>
<s>
In	O
late	O
2021	O
,	O
Apple	O
released	O
an	O
app	O
called	O
Tracker	O
Detect	O
on	O
the	O
Google	B-Application
Play	I-Application
Store	I-Application
to	O
help	O
users	O
of	O
Android	B-Application
9	O
or	O
later	O
to	O
discover	O
unknown	O
AirTags	B-Operating_System
near	O
them	O
in	O
a	O
"	O
lost	O
"	O
state	O
and	O
potentially	O
being	O
used	O
for	O
malicious	O
tracking	O
purposes	O
.	O
</s>
<s>
In	O
February	O
2022	O
,	O
Apple	O
added	O
a	O
warning	O
for	O
users	O
setting	O
up	O
their	O
AirTag	B-Operating_System
,	O
notifying	O
them	O
that	O
using	O
the	O
device	O
to	O
track	O
people	O
is	O
illegal	O
and	O
the	O
device	O
is	O
only	O
meant	O
for	O
tracking	O
personal	O
belongings	O
.	O
</s>
<s>
It	O
will	O
take	O
between	O
8-24	O
hours	O
for	O
an	O
AirTag	B-Operating_System
to	O
chirp	O
if	O
it	O
has	O
been	O
separated	O
from	O
its	O
owner	O
.	O
</s>
<s>
The	O
National	O
Post	O
in	O
Canada	O
reported	O
that	O
AirTags	B-Operating_System
were	O
placed	O
on	O
vehicles	O
at	O
shopping	O
malls	O
and	O
parking	O
lots	O
without	O
the	O
drivers	O
 '	O
knowledge	O
,	O
in	O
order	O
to	O
track	O
them	O
to	O
their	O
homes	O
,	O
where	O
the	O
vehicles	O
would	O
be	O
stolen	O
.	O
</s>
<s>
In	O
response	O
,	O
Apple	O
announced	O
just	O
before	O
WWDC	O
2021	O
that	O
it	O
had	O
begun	O
rolling	O
out	O
updates	O
that	O
would	O
allow	O
anyone	O
with	O
an	O
NFC-capable	O
phone	O
to	O
tap	O
an	O
unwanted	O
AirTag	B-Operating_System
for	O
instructions	O
on	O
how	O
to	O
disable	O
it	O
,	O
and	O
that	O
they	O
had	O
decreased	O
the	O
delay	O
time	O
for	O
the	O
audible	O
alert	O
that	O
sounds	O
after	O
the	O
AirTag	B-Operating_System
is	O
separated	O
from	O
its	O
owner	O
from	O
three	O
days	O
to	O
a	O
random	O
time	O
between	O
8	O
and	O
24	O
hours	O
.	O
</s>
<s>
AirTags	B-Operating_System
have	O
been	O
utilized	O
to	O
track	O
stolen	O
property	O
and	O
assist	O
police	O
in	O
recovering	O
them	O
for	O
return	O
to	O
their	O
rightful	O
owners	O
.	O
</s>
<s>
In	O
coordination	O
with	O
local	O
police	O
,	O
they	O
utilized	O
an	O
AirTag	B-Operating_System
placed	O
in	O
the	O
vehicle	O
to	O
locate	O
the	O
car	O
and	O
were	O
able	O
to	O
recover	O
their	O
property	O
.	O
</s>
<s>
Police	O
were	O
reportedly	O
elated	O
at	O
the	O
ease	O
at	O
which	O
they	O
were	O
able	O
to	O
arrest	O
the	O
criminals	O
and	O
recover	O
the	O
property	O
thanks	O
to	O
the	O
AirTags	B-Operating_System
.	O
</s>
<s>
Users	O
who	O
set	O
their	O
AirTags	B-Operating_System
to	O
lost	O
mode	O
are	O
prompted	O
to	O
provide	O
a	O
contact	O
phone	O
number	O
for	O
finders	O
to	O
call	O
.	O
</s>
<s>
In	O
September	O
2021	O
,	O
security	O
researcher	O
Brian	O
Krebs	O
noted	O
that	O
the	O
phone	O
number	O
field	O
will	O
actually	O
accept	O
any	O
type	O
of	O
input	O
,	O
including	O
arbitrary	O
computer	O
code	O
,	O
opening	O
up	O
the	O
potential	O
use	O
of	O
AirTags	B-Operating_System
as	O
Trojan	O
horse	O
devices	O
.	O
</s>
<s>
Similar	O
product	O
manufacturer	O
Tile	B-Application
criticized	O
Apple	O
for	O
using	O
similar	O
technologies	O
and	O
designs	O
to	O
Tile	B-Application
's	O
trackers	O
.	O
</s>
<s>
Spokespeople	O
for	O
Tile	B-Application
made	O
a	O
testimony	O
to	O
the	O
United	O
States	O
Congress	O
saying	O
that	O
Apple	O
was	O
supporting	O
"	O
anti-competitive	O
practices	O
"	O
,	O
claiming	O
that	O
Apple	O
had	O
done	O
this	O
in	O
the	O
past	O
,	O
and	O
that	O
they	O
think	O
it	O
is	O
"	O
entirely	O
appropriate	O
for	O
Congress	O
to	O
take	O
a	O
closer	O
look	O
at	O
Apple	O
's	O
business	O
practices	O
"	O
.	O
</s>
<s>
AirTags	B-Operating_System
do	O
not	O
have	O
holes	O
or	O
other	O
mechanical	O
features	O
that	O
would	O
allow	O
them	O
to	O
be	O
positively	O
attached	O
or	O
affixed	O
to	O
the	O
item	O
being	O
tracked	O
;	O
solutions	O
include	O
adhesives	O
(	O
glue	O
,	O
tape	O
)	O
and	O
purpose-built	O
accessories	O
.	O
</s>
<s>
The	O
polyurethane	O
AirTag	B-Operating_System
Loop	O
is	O
the	O
least	O
expensive	O
solution	O
sold	O
by	O
Apple	O
;	O
it	O
costs	O
the	O
same	O
as	O
a	O
single	O
AirTag	B-Operating_System
and	O
has	O
been	O
criticized	O
as	O
an	O
"	O
accessory	O
tax	O
"	O
.	O
</s>
