The transmitter is 5v 1amp and powered through usb to usb mini cable from just about any usb power pack. The receiver is 5v 2amp and only some usb power packs have 2amp so be sure to check and be sure to plug into correct 2amp port. The power for receiver is through usb to round connector socket on receiver. Receiver does NOT get power from mini usb port
What cable to you use for USB to 5v DC?
Type M?