Picture of Cassette Tape MP3 Player
I've been trying for some time to come up with a mod for the cassette tape.  Initially I thought it would be cool if I could stick a voice recorder into one of those tiny cassette tapes that used to be used in message machines (trying to ironic!) but it was way too small. 

Then I hit upon using one as an MP3 player.  Surprisingly, no-one has completed one yet as an 'ible so I decided to go down this path.  The hardest part was trying to find the right MP3 to be able to mod.  I finally found this MP3 Player on Ebay which fits really well into a cassette tape once the insides are removed.

The only changes you'll have to do is a bit of trimming to the cassette tape with a dremmel, a little bit of soldering and some design work and your done.

So in the name of irony, I present to you this Cassette Tape MP3 Player.


Step 1: Things to Gather.

Picture of Things to Gather.

1. Cassette Tape (get a few of these if you can, I found mine at a second hand shop, about the only place you can get them now. Make sure it uses screws to hold the case together.
2. Labels - These are used to add your own images to the cassette tape
3. MP3 player. Can be found on EBay.
4. 4 momentary push buttons. These you will pull apart and use as replacement switches.
5. Thin black plastic. i.e. from a oil container


1. Dremmel
2. Screwdriver
3. Drill
4. Stanley knife
5. Hot glue gun
6. Sharp scissors~
ipadmusic7 months ago

Wow! I love my old tapes. But do you think I can use standard AA batteries for this?

lonesoulsurfer (author) 7 months ago
Howdy - you can charge the MP3 player through the headphone jack. It comes with a USB adapter.
liberty.comal7 months ago

Just curious... Im about to try this out, but i didn't notice anything in your instructions for charging the battery. I'm assuming this mod would require a full change out each time rhe battery dies?

Why would you need a second hand shop for a tape? Just press the eject.

BrittLiv made it!11 months ago

Thanks for the nice comment! I finally got around finishing mine.


hey hi,

nice job. I need battery. What type of Battery it is?

NightLord2 years ago
To smo prijatelji, ansambel Lojzeta Slaka :)
Are you Slovenian or just have Slovenian ancestors?
You should use an 3g ipod shuffle(the one with no buttons), you need one slide switch and a headphone plug, nice and easy :)
Falkenberg2 years ago
Great work.
martzsam2 years ago
I love everything about this. You have my vote.
lonesoulsurfer (author)  martzsam2 years ago
Thanks dude
depotdevoid2 years ago
Great build! I tried to make something like this a few years ago, but the mp3 player I had turned out to be too big . . . this is way better looking than mine would have turned out anyway!
lonesoulsurfer (author)  depotdevoid2 years ago
Thanks man. Some of the MP3 players you can get these days are tiny. Really made the job easy.
Bom6at2 years ago
Well done!
lonesoulsurfer (author)  Bom6at2 years ago
Thanks dude
Georgews2 years ago
In the future, grab a cassette adapter and do the same mod but connect the adapters magnetic head to the audio out of the mp3 player. or buy this. http://www.amazon.com/gp/product/B007RUGC1M?ie=UTF8&force-full-site=1&ref_=aw_bottom_links
We do not buy........... "WE MAKE!!"
lonesoulsurfer (author)  jwflammer2 years ago
And mod ; )
paewookyung2 years ago
What a neat project!

BTW, can you tell what headphone you're using on the first picture?
lonesoulsurfer (author)  paewookyung2 years ago
There called "muse" and I got them from Borders Aust before they went kaput.
dokcal2 years ago
REALLY clever! I'm wondering if I could fit a small OLED-equipped player (like a Sansa Clip) so that the OLED would be visible through the tape window!
Winged Fist2 years ago
What a great idea! And really nice 'ible! I just hope you digitized Paul Robeson before you started;-)
knakamoto2 years ago
So...how do you put in the USB port?
lonesoulsurfer (author)  knakamoto2 years ago
Good question!
The headphone jack hole is also used as a USB port. You get a special cord for this with the MP3. It means less holes in the cassette tape which is a good thing.
agis682 years ago
pretty cool....you can place it in tape machine of the car and listening your list.....
Tomdf2 years ago
This is going on my to-build list for sure.
lonesoulsurfer (author)  Tomdf2 years ago
cool - pretty easy mod. Really dig your ornithopters by the way.
ilpug2 years ago
Oh jeez, I must make one. Good job man!
lonesoulsurfer (author)  ilpug2 years ago
cheers mate
beatmakers2 years ago
really cool! reminds me of that cassette tape transformer from like 15 years ago, but way cooler.

sweet instructable mang.
lonesoulsurfer (author)  beatmakers2 years ago
Yeah I remember those as a kid. Man they were great, really solid with metal parts - not like the plastic tansformers you get today
Mimikry2 years ago
Awesome work!
Definitely a winner - got my vote!
lonesoulsurfer (author)  Mimikry2 years ago
cool - thanks
BrittLiv2 years ago
Ahh great minds think alike, I had the same idea. Still waiting for my card to arrive, though. Great job! It looks really good!
lonesoulsurfer (author)  BrittLiv2 years ago
Cheers - good luck with your mod.