Self contained rechargeable bluetooth casette

Has anyone tried this bluetooth reciever cassette? I'm curious about the sound quality. It seems like a slick mobile / flexible alternative to having something hanging off your boombox.

Thoughts?

https://smile.amazon.com/Aluratek-ABCT01F-Universal-Bluetooth-Cassette/dp/B06XDDHXRN

Have used something similar;
https://www.ebay.co.uk/itm/Bluetooth-Wireless-Car-Van-Cassette-Tape-Adapter-for-iphone-iPod-Android-Samsung/221865482665?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
Battery life is a about 3/4 hours, sound quality is ok but nothing special, pairing is a pain, doesn't like other BT devices running at the same time, wouldn't rely on it.
'Useable' would be an accurate term but a wired RCA line in or DIN is more reliable for me, it's high maintenance, but ok.

Thank you for your response. I will stick with wired.