The TBD (Dark) is simply an oscillating fuzz and a feed back loop with photo sensitive eye in one pedal.

The oscillating fuzz is capable of hundreds of different fuzz tones with it's blend, fuzz, oscillation, and gate controls, while the feed back loop can mutate any of your other effects into a new noise generating machine of doom

Works well with bass, guitar, vocals, synths, drums, and anything else you can run through it

Controls:
Volume knob - tons of gain on tap
Blend knob - bends original signal into fuzz, thins fuzz sound
Fuzz knob - controls power going to fuzz, becomes more sputtery at lower settings
Oscillation knob - controls intensity and pitch of the oscillation
Gate flip switch - toggles an alternate fuzz mode on which can gate the oscillation
Loop foot switch - engages true bypass / feed back loop
Eye flip switch - engages photo sensitive eye to control loop intensity
Loop flip switch - engages feed back function of loop
Loop foot switch - engages pedals in loop

Specifications:
True bypass
Enclosure size - 4.7" x 3.7" x 1.18"
Boutique quality components
Incredibly low mA draw
Silicon transistor based
9 volt, 2.1 mm, negative tip power jack
9 volt battery snap inside (unscrew the back plate).