MyVolts 9V power supply adaptor compatible with Digitech Whammy DT Effects pedal - US plug This 9V high-quality power supply adapter serves as a replacement PSU for the Digitech Whammy DT Effects pedal. The adaptor features overvoltage, overcurrent and short circuit protection to protect it from damage. Package Includes: - US 9V power supply adaptor; PLEASE NOTE: This power supply unit only works with Whammy DT and does NOT fit the Whammy pedals that require AC-to-AC power, such as the Whammy4V (red pedal). Please check your pedal model or contact us before you buy. This is a fixed voltage 9V power supply adaptor designed to meet exactly the power specification of your device. Lifetime warranty - this power supply comes with a warranty covering up to the lifetime of your device, or 10 years - whichever is greater. Energy efficient - this power supply is Energy Star level 5 approved, guaranteeing more efficient delivery of power to your devices, at less cost to you.