Tried the redmi airdots when it first came out. probably the fastest I've got rid of a TWS. It was one of the rare TWS back then at that price point so the sound quality was somewhat forgivable, but now there is really no really to buy it anymore. They did release a newer version recently though, but not gonna try. Actually if i'm not mistaken haylou and qcy both under xiaomi? haha.
Lol. I know haylou is under qcy, and they are all classified under 'Xiaomi eco system', but not sure if they are really under Xiaomi.
Btw bro, u should contact qcy for your t4 delivery. Its like 2 days more, u can file for non-receipt claim liao.
mine also using cai niao. maybe lost package liao