Amazon.com: Donner MIDI Keyboard Controller, DMK25 Portable MIDI with 25 Responsive Keys, 8 Great Tactile Backlit Drum Pads, 4 Assignable Knobs for Beginners & Music Composition Lover, Great Gift for Son, Black :
The best wireless & portable Bluetooth MIDI keyboards for iPhone, iPad & Mac - 9to5Mac
Stage Right by Monoprice SRP200 USB MIDI Pad Controller with 16x RGB Velocity-Sensitive Pads and 8x Sliders - Monoprice.com