Very portable MIDI synth [closed]

Question

I was planning to buy a very small MIDI keyboard (akai lpk25).

Of course to make it produce sounds, I would need to connect it (via USB) to my laptop.

Question: say one day I want to go to the park and play a bit, is there something I can plug to the keyboard to make it output sound which is not my laptop (or mobile phone, since I don't have one)? The smaller the merrier!

I am not sure how these things are called, I guess MIDI synths.

Answer 1

Not sure what kind of sound the module should produce, but Ketron produces some fairly portable ones.

Actually, have a look at this question, has many more examples.

Answer 2

What you are looking for is synthesizer, not MIDI controller. You can search with this way.

An example; you can check how suitable Yamaha Piaggero 61-Key Lightweight Compact is for you.

Answer 3

There are a few portable, miniature polyphonic keyboard synthesizers available.

The Casio SA-76 is one; it sells for US $50. It has built-in speakers and runs on batteries; however, it does not have MIDI.

Another model, if it is still on the market, is the CME U-Key v2 Mobiltone, which does have MIDI, and a built-in speaker, but it does not run on batteries. It requires USB bus-power.

Korg has just announced a new product, the tinyPIANO, a digital toy piano that runs on batteries. (Hey, you asked for it.) It does not have MIDI.