Make: MAS
Model: The Expanse
Box: Yes
Power Supply: Not included
Condition: Very Good - it appears some excess space dust (or acetone) may have accumulated on the left-hand side of this pedal, as there is a raised drip line. It's not very noticeable from the top. 
Notes: Super cool harmonic tremolo pedal that came in on trade. I haven't seen many with this dark sparkle, so it may be a limited run. 
 
From the manufacturer:

The Expanse
A harmonic tremolo pedal you can keep on Earth, or get lost in space

This harmonic tremolo gives you a huge range of tonal possibilities. It can be used as a standalone tremolo, optionally with with some layered on reverb, or you can dial in some complex textured delays and feedback to create dreamy soundscapes. And of course you have everything inbetween.

Expression jacks
Separate jacks let you simultaneously control WIDTH and either EXPANSE or VELOCITY with any expression pedal, including the Expanse-themed expression slider, or the regular MAS Effects Desktop Expression Pedal.

Width
Sweeping range of the tremolo (on bottom 2 OUTER SPACE settings)
or Spacing between echoes (on upper OUTER SPACE setting)

VELOCITY
Speed of tremolo sweep

EXPANSE
Amount of atmospheric ambience

VASTNESS (Unlabeled upper-right knob)
Amount of space added when pressing the VAST EXPANSE foot switch
(Interactive with EXPANSE. e.g. Higher EXPANSE settings make this more responsive. Experiment to get a feel for it)

VOLUME
Overall effect level. Gives up to 2x boost to compensate for the perceived drop in volume from tremolo

BLEND
Mixes dry and wet signals

OUTER SPACE
Sets the mode of the pedal:
DOWN: Harmonic tremolo only. EXPANSE is disabled
MID: Adds expansive reverb
UP: Adds echoing feedback

WARP
Selects between different voices:
DOWN: Sensible and beautiful harmonic tremolo
MID: Slightly more severe, with different frequencies on the high and low pass filters, and more resonance
UP: The low frequency oscillator (LFO) not only pans between the filters, but also shifts their frequencies. The WIDTH knob has a much bigger impact on the sound than in other WARP settings as it also shifts the resonance

VAST EXPANSE (foot switch)
Temporarily pushes the EXPANSE beyond EXPANSE its limits. Its added amount is controlled by VASTNESS.

BYPASS (foot switch)
Tap to toggle between engaged and bypassed (true bypass). Hold to temporarily toggle, the release to switch back

Internal Trimmers
An internal trimmer sets the ceiling of the EXPANSE knob.
Another sets the LED brightness, which can reduce power consumption if needed.

Got questions? Shoot me a message, I love nerding out with other gearheads!