Sony STR-AV770X Stereo Receiver 5.1 Channel - Home Theater AVR. The unit powers on, I have no way to test it. That is the reason for it being listed "as is - parts or repair". Purchased at an estate sale. No remote. Unit has scuffs & scratches. Please look at pictures to see the actual item that you will be receiving so there are no surprises. Smoke free home. Email me with any questions. Thanks.