Features: This model was developed in collaboration with Steve Vai. By using a light sensor, it completely eliminates scratch noise and provides a wide-range wah effect without any loss of sound. Nickname: BAD HORSIES. Specifications: ■ Guitar Effects Pedal ■ Wah Pedal ■ Steve Vai Model "2" ■ In addition to the basic performance of the VAI-1, it is newly equipped with a Contour Wah Control Section. Two types of wah sounds are available through the Frequency control, which adjusts the frequency band, and the Level control, which adjusts the volume. It also eliminates pop switching noise during mode switching, and features a unique buffer and circuit. Furthermore, it allows guitarists to control their ideal wah sound in various ways, such as an internal wah-off delay trim that allows adjustment of the delay time when switching bypass.