Features:  _x005f_x000D_ 100% Brand new and high quality. _x005f_x000D_ Provide high quality sound for both calling and music. _x005f_x000D_ 3.5mm standard plug, suitable for nearly all smartphones. _x005f_x000D_ Built-in microphone, with answer and hang up button.  _x005f_x000D_ Soft clear air tube design, advanced silicone earplugs. _x005f_x000D_ Can enormously reduce radiation when making the phone call. _x005f_x000D_ CTIA/OMTP mode switch, compatible with nearly all smartphone: for compatible with iPhone, for compatible with Samsung, for compatible with Huawei, for compatible with Xiaomi and so on. _x005f_x000D_ _x005f_x000D_ Specifications: _x005f_x000D_ Plug: 3.5mm. _x005f_x000D_ Type: Stereo air tube radiation-proof earphone. _x005f_x000D_ Speaker Spec: 10mm. _x005f_x000D_ Sensitivity: 102db S.P.LAT 1KHZ. _x005f_x000D_ Speaker frequency response: 20Hz - 20,000H _x005f_x000D_ Impedance: 32Ohm. _x005f_x000D_ Rated power: 100mw. _x005f_x000D_ Color: All Black _x005f_x000D_ _x005f_x000D_ This earphone uses the Medium size earplugs. _x005f_x000D_ In the parcel shipping to you, there are Two Extra Earplugs included (One large size and One small size). _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ _x005f_x000D_ 1 x Covert Acoustic Tube Earpiece for Cellphone _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ 2 x Extra Ear-bud _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ 1 x User Manual _x005f_x000D_