If you accidentally touch the whammy bar when inserting the Wii remote controller into the guitar, it will impact the whammy bar function. If you have issue with whammy bar, please take the Wii remote controller out from guitar first, then plug it again into guitar. Be careful not to touch the whammy bar during this insertion. Now the whammy bar should function normally.
Gametime Buddies Brand Name Wireless guitar controller for Guitar Hero and Rock Band games
Size: 30 inches long with neck, 9.5 inch wide at the guitar body
Wii remote controller slot on the front of guitar, easy to connect and hold the Wii Remote
Compatible with All Guitar Hero Games and Rock Band 2 and 3
Not compatible with the Rock Band games or games that require microphones to play, such as Rock Band 1