Rocketfish Universal Wireless Rear Speaker Kit. Black. Model RF-WHTIB.
This includes both the sender and receiver unit, AC adapter and speaker wires.
This item has been tested and bother units power up, however, the sender unit does not appear to connect to the receiver. Sender unit likely needs replacement or a replacement Avnera AV7111 wireless audio chip. I am unable to locate a source for this part outside of China.
The item is being sold AS-IS for parts only, in non-working condition. No warranty and no returns. Item does not include anything not pictured or listed in the description.