The Nord Wave is a 49-key polyphonic synthesiser developed by Clavia. It is part of the growing market of keyboards whose functionality fuses analog, FM, and digital synthesis engines together into one package. Other keyboards of this type include the Nord Stage (albeit to a lesser degree) and the Roland JD-800.
The Wave has two oscillators, each with six different sound banks. Five of these banks are common to both; these are the three analog waveforms provided (sawtooth, triangular and square), as well as noise generation and FM synthesis (with many different algorithms provided). Oscillator One's unique bank is a wavetable bank, with a sample-playback bank being unique to Oscillator Two (the latter of which is full of Mellotron tapesets, amongst other things).
There is an extensive, comprehensive user interface on this keyboard, with plenty of dials and switches at one's fingertips. Shown below is a list of these features.
http://www.nordkeyboards.com/main.asp?tm=Products&clpm=Nord_Wave