Take it with a grain of salt. They are the only retailer selling it so they have a vested interest in not disclosing everything. Wait for actual owner reviews before deciding to purchase.
Sherry from Boyue has yet to reply to my YouTube Comment regarding the new UI that seems to show four eBooks open at once and if that capability also works with PDFs (ideally, it should, since it’s their native reading app).
This is still worth further investigation.
Likebook Ares Note: The Likebook Mars Update We’ve Wanted
Likebook Mars: eBook Reading UI Breakthrough?
Video: Likebook Mars Playing Video
Video: Interesting Review of Likebook Mars
Likebook Mars Via Amazon: What?
Video: Likebook Mars Versus Likebook Muses
Likebook Muses: An Upgraded Likebook Mars
Likebook Mars Firmware Update
Google Books PDF On The Likebook Mars, Part Two
Google Books PDF On The Likebook Mars
Boyue Likebook Mars: An “eInk iPad Mini”