Looks like a bit of a bargain …
https://www.amazon.com/Nobsound-Bluetooth-Amplifier-Integrated-Power/dp/B0BLXYBZZ5?crid=3VORRGD0UJWG6&keywords=nobsound+b100&qid=1687551030&sprefix=nobsound+b100,aps,123&sr=8-2-spons&ufe=app_do:amzn1.fos.18ed3cb5-28d5-4975-8bc7-93deae8f9840&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1&linkCode=sl1&tag=stehufpho-20&linkId=72d1a913f637e84486f523042f401767&language=en_US&ref_=as_li_ss_tl
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