Thank you for viewing. LITHON Bluetooth Transceiver TR-01 Model Number: KABT-002B I purchased this and stored it at home. Operation confirmed. * I tried to connect it once, but it didn't work, and I didn't use it after that. * The box has scratches, some tears, and swelling (photos 4 and 5). * Please check the photos before purchasing. Thank you for your consideration. [Product Introduction] This one device can both transmit and receive. Transmit TV audio. Receive to your favorite wired speakers or headphones. Easily make non-Bluetooth devices wireless. ■ Transmit TV audio Connect a TV or music player that doesn't have a Bluetooth transmission function to this product, and you can transmit the audio to a Bluetooth-compatible device (such as wireless earphones) and play it. ■ Receive to wired speakers You can play the audio from wireless-compatible devices such as smartphones, tablets, and computers on your favorite non-Bluetooth devices (such as wired speakers and headphones).