The FW-3 is the successor of the PW-1. The pedal features a peak control that determines the range of the wah as well as a jack for an external on/off switch.
About The Author
Florence Munoz founded BossArea.com in 2003 and has written extensively about guitar pedals. Boss Area lists over 150 different pedals of all types produced since 1977. The listings are now on GuitarLessons.org.