Adapted models Most Cars with FM Radio, Color Black, Model Baseus Solar Car Wireless MP3 Player, Capacity 700mA, Type-C input 5V-750mA, Expansion Inputs TF cards/USB disks/AUX interfaces/ Wireless players, Brand Baseus, Transmission Rate Type-C / 480Mbps, Material ABS, Wireless Version Wireless 5.0, Weight About 76.7g.
Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. I can’t find any active coupons for this product in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG5bb548, BGcd62f3, BGe64183, 6GSGIT, 00c906, BG00c906, ADMITAD2212, 2022ACTIESNL
(probably won’t work, but you can try them out)
Price history and price alert
Check out price history chart (for all/most countries) for Baseus Magnetic Solar Powered Car Player. The lowest price was: $21.99.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).