Dunlop has taken the original Cry Baby and added the three most popular and requested upgrades: the famous "Q" control, which varies the intensity of the wah effect by adjusting the effect"s bandpass shape; the volume Boost, for up to +15 dB added gain; and Dunlop"s Auto-Return function that automatically engages the effect when you place your foot on the pedal. The 95Q is a flexible tone monster that retains the original Cry Baby"s fast-reacting characteristics.Heavy die-cast steel construction. Q dial. Made in the USA. Uses optional ECB003 power supply.