The predecessor to the AW-2 Auto Wah, the Boss T Wah or Touch Wah is an attack-sensitive wah with adjustable sensitivity and envelope depth. The "Drive" switch determines the mode of tone variation. In the UP position, your sound shifts from hard to mellow tone, and does the reverse of that when in the DOWN position. This particular T Wah was manufactured in '84 in Japan. Oh yes, it's the real deal.
This pedal shows its age, but sounds incredible and ships safely and swiftly!