http://www.ikmultimedia.com/products/irigkeys25/ for more info.
Hey, is that a MIDI controller in your pocket? Yes, yes it is. Musical ideas can come anytime and anywhere. So why not be ready for them when they arrive? iRig Keys 25 is an ultra-portable, ultra-affordable 25-key USB MIDI controller for Mac/PC. Its 25 velocity sensitive mini-keys provide a generous 2 octave range (plus 1 note), which also happens to make for a compact size that's perfect for stashing in your laptop or gig bag or backpack. And its small size is matched by its equally small price tag — now you can have a keyboard with you at all times without breaking the bank.