Features:
USB 37-Key MIDI Keyboard controller.
Control switch for octave up or down (-4 to +4).
External socket of USB Jack(transmit power and MIDI signal).
Support for iPad, for Windows@ XP & Mac OS X.
Protect foam to prevent bump when you play.
Comes with keyboard 2 trays and USB cable.

Specification:                   
Material: Plastic                
Item Size: 53 * 18 * 4cm / 20.8 * 7.1 * 1.5in
Item Weight: 1355g / 47.8oz
Package Size: 65 * 23 * 12cm / 25.6 * 9 * 4.7in                                                       
Package Weight: 1810g / 63.4oz

Package List:
1 * MIDI Keyboard
2 * Tray
1 * USB Cable
1 * User Manual (English)

Note:
The cable of connecting for iPad, for Windows@ XP & Mac OS X is not included.