Ali express has the Bosean, and the specs appear to be different from the link you found. https://www.aliexpress.us/item/3256803168407076.html https://www.aliex

Ali express has the Bosean, and the specs appear to be different from the link you found. https://www.aliexpress.us/item/3256803168407076.html https://www.aliexpress.us/item/3256803168407076.html I see multiple knock-offs of the version you linked, the packaging looks different than the Bosean. Is the lack of a brand or company name printed on the device a potential clue about which one’s a knock-off?