The ZGP-W is a compact and elegant power converter designed specifically for effects pedals (or power supplies that meet the specifications). It instantly transforms your phone charger or power bank into a pedal power source. It easily mounts next to your effects pedal or other devices, providing stable, clean voltage while taking up minimal space. We include a USB input cable, allowing you to connect your phone charger or power bank to the converter via USB to easily generate a DC 9V voltage (positive externally and negative internally). The output current reaches 400mA, making it extremely convenient for powering devices that meet the specifications. Most importantly, it features a special noise reduction circuit that filters out the high ripple noise from adapters and power banks, providing the noise level of a pure standalone power supply. This power converter is designed with reverse polarity, overload, overvoltage, undervoltage, and short-circuit protection. If an abnormality occurs, the LED indicator automatically turns off and the internal protection circuit activates, ensuring the safety of your device. Wide voltage design, operating from DC 5V to 9V. Input voltage: DC5-9V Output voltage: DC9V Output current: 400mA No-load current: 70mA Output polarity: Externally positive, internally negative Input polarity: Externally positive, internally negative Output voltage accuracy: 5% Reverse polarity protection: Yes Color: As Shown Material: plastic Package Contents: 1 * ZGP-w power noise blocker 1 * DC cable 1 * USB to DC cable