It is described as true bypass on their site.
"W-602
Unique buffered, true bypass, active design with 3-positions function switch. Choose: classic buffered volume, -12dB, or Program modes. In Program mode two, user controlled, variable pots allow you to select max 6-18db of gain and 0 to full cut. True bypass all active circuitry is capable of driving both high and low impedance loads. On/off LED indicates when pedal is engaged."
Thats $170 on their site