MyVolts 9V in-car Power Supply Adaptor Compatible with Roland Cube Street Amplifier This 9V high-quality in-car power adaptor serves as a replacement in-car adaptor for the Roland Cube Street Amplifier Package Includes:- 9V in-car power supply, Suitable for 12V or 24V vehicles - cars, campervans, and caravans Warranty - 1 year from date of purchase