This is a great travel gadget for amateur musicians and not only. You can easily roll it up and put it inside your bag. At the destination you can take it out and play with 61 standard keys, 128 synthesized tones, 100 rhythms, MIDI, speaker out and the 3.5-mm headphone jack.
Specifications:
-61 Key Piano, 128 Different Synthesized Tones, 100 Preset Rhythms, 20 Demo Songs
-15 Hole Port Midi OUT
-3.5mm Headphone Jack
-Volume Control, External Speaker OUT
-Powers from power adapter or 4 AA batteries
-Size: 220 x 980 mm
Get one from Chinavasion for $60.95.