You will need a Mac or a Windows computer to play any model of the Eigenharp.
The instruments need to be connected to a Mac or a PC in order to run the EigenD software. EigenD is the software that manages the behaviour of the instrument and generates sound.
The actual sound output of the Eigenharp is your computer's audio headphone output or computer audio interface. For more details in terms of hardware specification please refer to our products page here
You can not play the Eigenharp without a computer running EigenD.