The SynthStation25 transforms iPhone or iPod touch into a portable music production studio for mobile music creation. This MIDI keyboard controller gives your handheld device a two-octave set of piano keys and professional audio outputs, and it integrates perfectly with the Akai Pro SynthStation app and select third party apps. The SynthStation25 is powerful enough for professional musicians, yet virtually anyone can use it to easily create music. his 25-key synth keyboard features a built-in dock for iPhone or iPod touch that allows you to take performance beyond simply touching the screen. Touchscreen technology is amazing, but it doesn't respond to velocity which is a key component to capturing your musical expression. The SynthStation25 gives you two octaves of velocity-sensitive, synth-action keys, pitch and modulation wheels, and octave up and down and sound-bank buttons so everything you play get laid down in the mix. The SynthStation25 has a stereo pair of RCA line outputs and a headphone output for connection to recording and sound reinforcement systems.