there are so many different ones!
the cheapest one i found was 43$ (behringer uw300)
the most expensive one was 623$ (z.vex ooh wah)
but i can recommend a dunlop cry baby for about 110$ =]
A wah-wah pedal is a pedal used for an Electric Guitar which imitates the sound of the human voice.
Unfortunately, a wah wah pedal is only used for guitars. A wah wah pedal (or just wah pedal) is used to mimick a human voice by altering the tone of the guitar.
Wah pedal
I would say a Wah Wah pedal and some type of distortion.
Cry Baby
That's a good question, he uses a wah-wah during the receding parts of his notes...but you wont get the exact same sound as he does it without a wah-wah. but the best thing you can do to get it close is to do bend and while you're bending the end of the note close it in with a whammy. buy a wah wah pedal. but even with the wah-wah pedal, it is unlikely that you will ever get close to being able to play like Tom Morello.
buy a wah pedal and figure it out. shouldn't be too hard.
Morley Mark Tremonti Wah Pedals
Wah Wah pedal, Octavio, Fuzz Face, and many others.
I think you mean "what is a wah wah pedal?". There is an accessory which is a pedal for guitar. You rock it back and forth and what results resembles the sound of exactly that, wah wah. It is made by changing the tone of the guitar back and forth from treble, or a high sound, to bass, or a low sound. Listen to a song by Cream called "White Room" for a great example.
The Fasel inductor is an electronic component inside the Wah Wah pedal that gives that real cool low end growl and wide sweeping depth to the Wah as heard in Hendrix's "Rainy Day, Dream Away". The Wah with the non-Fasel inductor sounds fine... until you hear a Wah with the Fasel inductor. Sadly the non-Fasel Wah pedal simply does not have the same growl and intensity as the Fasel Wah Wah pedal. I have both and tested them side by side. I'm trying to determine if my 1970s pedals have the Fasel or not.
Del Casher at Warwick Electronics Inc./Thomas Organ Co. Played on the prototype wah-wah pedal while it was being developed.