Dussun was showing a line of power conditioners (500W, 800W, and 1200W) that offered waveform shaping, regulation, isolation, and DC suppression. Oh yeah, and they offer 85% efficiency. The X-1200 retails for $2500.
But what's that little thing on top? That's the CT-1, a line tester that Dussun will loan to customers who buy the conditioners.