The Electro Harmonix Bad Stone Phase Shifter Guitar Pedal is a remake of the popular eponymous effect from the 1970s. The Bad Stone has two operating modes. In Auto mode the phase shifting effect can be controlled using the controller rate and feedback. During Manual mode the full-range of the phaser can be controlled by the user.

The main features of the Electro Harmonix Bad Stone Phase Shifter Guitar Pedal include:

• 2 Operating Modes (Auto, Manual)
• Rate, Feedback & Manual Shift Controls
• 9V Battery powered
• Design: Floot Effect
• Manufacturer: Electro Harmonix