USB Type-A male to 5.5mm barrel connectorPower devices from a USB portCharge electronic devices via the USB port of your PC or USB chargerSuitable for electronic devices with 5.5mm barrel jackSpecification:Color: BlackCompatible with:For Electronic devices such as loudspeaker, USB electric fan, etc. with 5.5mm barrel jackPackage included:1-100x USB to DC CableBuyer Note:If you are satisfied with our service, we appreciate you leaving us a positive response and 5 star rating review! Your opinion is important to the success of our business. If you are not satisfied with the product or have not received the product for more than 35 days, please contact us to resolve, we will do our best to solve. We are sure to come up with a satisfactory solution. Please contact us first before leaving cold response or good response of 1-3 stars and opening the case. We'll do our best to solve your problem. Because we believe that everything can be solved through communication. Thank you very much！