Model Number: 400-BTAD011 This device allows you to connect Bluetooth-incompatible devices to Bluetooth devices. (e.g., Connect a Bluetooth-incompatible TV to Bluetooth headphones, etc.) Output is possible from three types of cables: audio cable, optical digital cable, and coaxial digital cable. It can also connect to two Bluetooth receiving devices simultaneously. Please check the Sanwa Supply website for detailed specifications. [Note] We have not been able to verify the operation of the coaxial digital cable connection. (Because my home equipment does not have a coaxial digital cable output terminal) We have checked the operation of the other connections before packaging. Please be aware of this beforehand. We are not currently considering lowering the price.