Akai MPK Mini

This compact MIDI keyboard is great for musicians on-the-go or casual players who just want a fun distraction. The best thing about it is that it's powered by USB, so there are no leads to leave behind.

Akai MPK Mini

It works great with Garageband, so if you've got a Mac you just plug it in.

A key feature of the MPK Mini is the built-in drum pad and arpeggiator, as it gives you all sorts of options. The syth-action mini keys are also handy, as they're designed to save space.