The smallest tiny keyboard?

[Bob]

I'm looking for a tiny keyboard.  Basically just for pitches, so an octave would work.

Might not even have to be a keyboard.  Could be more like a 'keychain' and have button instead of keys.

For on-the-go ear training.


Any ideas?

[shingo]

Maybe something like this?

[Bob]

I'm thinking something with one button per note.  I saw a key fobbish style one once a long time ago.  Some kind of tuner/pitch device. 

[pinoypianist]

I don't know about tiny keyboards but how about cellphones with the composer thing or a pitch pipe (altough it looks kinda awkward when use it in public)

[Bob]

Yes, maybe more like a pitch pipe with buttons for each note.