DRIVE controls amount of drive,
COLOR is for tone shaping,
OUTPUT is amount of volume,
SPACE is echo 1 (which cuts quick when bypassed) and
TIME is echo 2 which trails when bypassed)
Smaller 4.7" x 2.6" x 1.5" 125B sized enclosure,
buffered bypass switching,
common 9vdc "CENTER NEGATIVE" 2.1mm BOSS style power input and battery snap.
Current draw 50mA.
Power supply not included.