Sony STR-D450Z AM FM Stereo Receiver Audio / Video Control Center.  I have plugged this unit in and tested everything I can without plugging in speakers which I do not have.  Everything is working as expected without having other equipment to plug into it.  I have the remoted and tested as much as I could.  The "System Off" and all "System Control Function" buttons worked on the remote.  I will ship the remote without the batteries.  The unit has some very minor scratches but overall it is in excellent condition.