This is a great set for your home (or dorm) and car. The portable speakers boom box COMES WITH the EXPRESS-ez receiver. (fits other SiriusXM receivers also) SXSD2 model. This receiver fits on the home and car adapters. All of it works. There is also a car antenna that’s not opened. There is an extra antenna and power supply that will work on another stereo system. Please look at the pictures they are part of the description. Just activate the receiver and use it anywhere. You will heed your own account to activate it. If you already are a SiriusXM customer you can add this receiver to your account. This is final sale.