What is Reddit's opinion of
"Esinkin Wireless Audio Receiver for Music Streaming Sound System Works with Smart Phones, Tablets and Car, Wireless Adapter for Speakers"
2 comments of this product found across Reddit:
Are you trying to plug digital sources into this thing or do you just want it to receive a BT signal. For the former, something like this would work; and for the latter you would need something more like this or this