Blanket your house in Bluetooth for $30
https://www.cnet.com/news/blanket-your-house-in-bluetooth-for-30/
The answer to these and other home-audio obstacles can be found in a long-range Bluetooth receiver/transmitter. Like this one: For a limited time, and while supplies last, Uplore (via Amazon) has the Taococo Bluetooth Transmitter Receiver for $29.69 with promo code DAI4L5LI.
If this sounds familiar, it's because I recently shared a deal on a virtually identical product (in fact, it may have been exactly identical, just with different branding). But that one was priced $6 higher.