I got this one off Amazon - "FYSETC" duet wifi... I didn't want to pay full price but didn't want to wait for china shipping to save more money and this one had good reviews. It's been very good and consistent for me so far. Still not a cheap option though. Can be done much cheaper thru Aliexpress or the usual suspects overseas I know. https://www.amazon.com/gp/product/B07PPN6MZ9/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1