there are three types of mobile phone wired headset interfaces, 3.5mm round hole/lightning flat head/type-c flat mouth

tips: The Type-C-Port earphone in this model is analog signal, which is suitable for Huawei mobile phones (Hongmeng system cannot be used, and the earphone hole with 3.5 round hole cannot be used), those above Xiaomi 8 without 3.5 round holes can be used, and those with Type-C interfaces such as vivo OPPO Samsung cannot be used with digital decoding headphones. 3.5 pin headphones are universal regardless of mobile phone model.