<s>
The	O
K-NFB	B-Device
Reader	I-Device
(	O
an	O
acronym	O
for	O
Kurzweil	O
—	O
National	O
Federation	O
of	O
the	O
Blind	O
Reader	O
)	O
is	O
a	O
handheld	O
electronic	O
reading	O
device	O
for	O
the	O
blind	O
.	O
</s>
<s>
The	O
original	O
version	O
of	O
the	O
reader	O
was	O
composed	O
of	O
a	O
digital	B-Device
camera	I-Device
and	O
a	O
PDA	B-Application
,	O
which	O
contained	O
specialised	O
OCR	B-Application
software	O
and	O
speech	B-Application
synthesizers	I-Application
to	O
read	O
the	O
scanned	O
material	O
aloud	O
.	O
</s>
<s>
The	O
software	O
was	O
later	O
ported	O
to	O
the	O
Symbian	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
,	O
to	O
be	O
used	O
on	O
Nokia	B-Language
N82	I-Language
camera	O
phones	O
,	O
with	O
a	O
new	O
price	O
of	O
$	O
1,595	O
.	O
</s>
<s>
Developed	O
by	O
the	O
National	O
Federation	O
of	O
the	O
Blind	O
and	O
Sensotec	O
NV	O
in	O
2014	O
,	O
an	O
iOS	B-Application
port	O
was	O
released	O
at	O
a	O
price	O
of	O
$99	O
.	O
</s>
<s>
An	O
Android	B-Application
version	O
was	O
released	O
shortly	O
after	O
.	O
</s>
<s>
KNFB	B-Device
Reader	I-Device
can	O
read	O
:	O
</s>
