Only a output product, not an input product! It will not charge phones. Zimrit 3.5mm Male USB Male Jack Plug Audio Converter Adapter Data Charge Cable Aprox. 3 Feet long amp aux adapter. ux cable connector is use for convert data from Aux to USB, aux cable mic is useful for mic, usb to electric plug or usb cigarette plug can use for charge devices too, usb headphone with mic is compatible. If you need to use headphone with long cord it is best aux cord for headphones, best usb male to male connector by Zimrit. YOU CAN RETURN THE CABLE, ANY TIME YOU WANT! WE HAVE A FULL REFUND/RETURN POLICY. MAKE SURE YOU KNOW THE CABLE WORKS WITH YOUR DEVICE.