Aluratek ABC01F Bluetooth Wireless Audio Transmitter and Receiver

Aluratek ABC01F:
https://www.bestbuy.com/site/aluratek-bluetooth-wireless-audio-transmitter-and-receiver-for-tv-and-other-audio-devices-black/5715709.p?acampID=0&irclickid=U%3AO2WIxDSxyPTYSSvyQoNRTTUkF2kExxzTPzwM0&irgwc=1&loc=The+WireCutter&mpid=197432&ref=198&skuId=5715709
 
Aluratek ABC53F: https://www.amazon.com/dp/B07CMHW79H/?tag=thewire06-20&linkCode=xm2&ascsubtag=AwEAAAAAAAAAAhNJ
 
Bluetooth audio streams are compressed (blech!), but if you must, the Aluratek ABC01F is a rechargeable one-way coder/decoder that can be attached in Receive mode to the Line In port of the mc_PuP, or in Transmit mode to the Line Out port of the mc_PuP.  It uses the Bluetooth SBC/AAC standards of encoder/decoder. 
For low-latency Bluetooth audio, the Aluratek ABC53F supports aptX standard. Low-latency audio streaming is important for syncing with a companion video stream.