POD is a direct recording device for electric guitar. The blob-shaped desktop unit is a fully programmable stereo amplifier/cabinet/speaker/microphone emulator that allows you to get realistic guitar tones and record them directly to your tape deck or workstation. POD uses the patented TubeTone digital modeling technology found in the Line 6 AX2 212, Flextone Series Digital Guitar Amp Systems and the Amp Farm TDM plug-in for Pro Tools. In fact the front panel controls on POD are identical to the knob-driven front panel controls on the Flextone amp.

There are sixteen TubeTone Amp Models and sixteen digital effects to choose from with all parameters MIDI programmable. Essentially you are getting the front end of the Flextone Series Combo Amp sans speakers, power amp and cabinet. You could go for a Beatle sound and choose "Brit Class A" amp model (which I surmise is a VOX AC30 emulation) and add the "Rotary Speaker" effect from the Effects section.