the lenovo earbuds i bought also the same thing
use like few times, it won't work anymore
contacted their page, they just refund me fully without asking any question, without even requiring me to send it back
thn went to other brands like edifier, QCY....quality better, sound wise it's passable but it won't beat my superlux or sony headphones...those headphones are on another different level

What brand bookshelf speaker recommended?

I know got many but i think you know better

proves that the price gap does have a sound different

how much are the one u just listed?

that's like saying RM150 vs RM400-800 vs over RM1k
there will be difference but it all depends how much u spend....a RM100-150 will never have the sound profile of a RM400 ones

wtf do they need so many sound brands?

no more owned by malaysia already. sold back to the british already