My understanding was they gave up on their first design as well as failed the crowdfunding target yet now are mysteriously going to develop them with a new design and a further presale campaign that finished in March 2023, going to production in April & May 2023 with a June shipping target - yet this copy is already in the market so can't really be a rebrand unless Smabat has licensed it out as such...Smabat is the original developer and OEM, so give the credit to Smabat, not to Lun Sheng. Search this thread and you'll find plenty of discussion about Smabat developing M4 series and their wireless buds.
This picture is from AE "Sweet Audio Store". Picture shows "smabat Technology Labyrinth Acoustic Patent"
If I were to buy this, it would be directly from Smabat, not from some AE stores selling a rebranded Smabat product.
The labyrinth patent unfortunately is not a registered patent in any jurisdiction and only accounts for the acoustic chamber in a TWS design and not the actual modular TWS component which was the design premise of the concept. This labyrinth idea is a very common one in audio so it is only in it's TWS application they, we presume, are applying for a patent - a much harder bar to pass for patent registrations.
From my understanding Lun Sheng not only market with the Smabat patent listed but actually used this labyrinth/maze concept in it's YE01 earbud released last year. Consequently, it seems more likely that this is either a JV, licensed product or some form of internal/oursourced IP & design splinter company.
Will be interesting to understand more but until then hard to give either full credit as there is no way two companies should be launching the same product at the same time off the back of a crowdfunding.
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