The UCR201 Receiver can be powered off of external DC power. Inlcuded is an SMA antenna for the UM200C Transmitter.The item "Lectrosonics UCR201+ UM200C Wireless Professional Mic Transmitter + Receiver" is in sale since Sunday, January 3, 2021. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Microphones & Wireless Systems". The seller is "mjblack39" and is located in Reston, Virginia. This item can be shipped to United States.