That is stock, just as is rolled off the line.
Some of the other models have a hand/wah that you operate with the palm of your picking hand; I wish mine had that instead of the bigsby tremolo, but it's damn cool in any case. It also has a bass/treble booster and an E tuner built in.
Vox was pretty innovative.
My Gibson ES 335 is a way "nicer" guitar, overall quality wise, but the Vox is super cool and I will never part with it. I got it in the fall of 1989.