Why are some earbuds so Cheap and some so expensive? #manufacturing #environment

There are Ten million species of TWS Earbuds on the market. But why are some so Cheap or some are not? TWS Earbuds became the most popular product around the world now. First of all, TWS Earphone and Earbuds is a New Generation product that appears in Product iteration in the era; Secondly, TWS Earbuds has different types, Such as ANC(Active Noise Cancelling ) earbuds, ENC (environment Noise Cancelling)Earbuds, a common one. The ANC and ENC earbuds are more expensive than the regular ones. Because ANC and ENC are not so many companies Could produce. They have very high-level strict manufacturing techniques. Thirdly, You have to know which Integrated circuit scheme are you going to choose, It's not Which brand are you going to choose!