mizifihThe non digital are real analog 5.1 from your sound card. Front L/R, Rear L/R, and Center/Sub, and Mic in. 4 Plugs. 3 speakers per ear.
The Digital ones ($28 more) have a 5.1 soundcard in the desk control unit. USB connector.
The Digital ones have analog 5.1 out + microphone in on the back of the desk controller. You can plug in a light set of cheap headphones or 5.1 surround loudspeakers to them. Genius!
The Digital ones can connect to your phone over bluetooth in the desk controller. You can answer calls without taking your headphones off, and looking for your phone.
The mic is not so good on both models. The cable from the desktop volume controller to the headphones should be longer, and was a point of breakage on my first set(analog 5.1). Got my money back under warranty, and bought the Digital 5.1 I now have. The mic stopped working. I will now probably buy them again for this price.
mizifih3 drivers per side. I might be a Bass vibrator thing, or it has a Bass vibrator thing behind them. I am looking inside the ear piece thing now, and I see 3 speakers in each side. Each about the size of a half-dollar coin.
Both normal Analog and Digital have the same headset. The difference is the Digital are USB only, and can also take calls from your phone.
Hope that helps. for the price I would jump on this.