User guide:
https://www.manualslib.com/manual/1019508/Kaiboer-K670i.html
Kaiboer k670i User Manual
Unsure of how to translate foreign language on web site for Kaiboer.
Amazon item no longer available:
https://www.amazon.com/exec/obidos/ASIN/B00AZZRAY4/lizrnew-20
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