What a handy thing! You get the classic three knob Keeley compressor, one of the most reputable small-box comp options around, as well as a Tubescreamer-ish drive channel and a clean or Bluesbreaker style boost, all usable indivually or stacked. This is a perfect little all-in-one gain stage solution, as it does everything it sets out to do very well indeed.

Model: Keeley Tone Workstation
Made in: USA, 2016 approx
Type: pre-amp/overdrive/compression
Power: standard 9v supply or battery, draw 50mA approx
Equivalent new street price (approx): $445aud
Mods: velcro attached
Accessories: original box and manual
Condition notes: no major marks, excellent condition

Controls:
Drive section
Level: output volume
Drive: gain added to signal
Tone: overall brightness of sound
Baked/Mod toggle: up for high gain, down for low gain

Drive/Boost section
Level: output volume
Drive: gain added to signal
Tone: overall brightness of sound
Katana/1962 Toggle: up for transparent style boost, down for 'British' voiced boost

Compression section
Level: output volume
Blend: mix between compressed and dry signal
Sustain: amount of 'squish' added
Treble/stock toggle: up for a brighter treble boost tone