Shure SE425-V UNI, Dynamic In-Ear Earphones, With RMCE UNI cable with remote and microphone, 2-Way earphones, Sound isolating, In-ear design, Impedance: 20 Ohm, Frequency response: 20 - 19,000 Hz, Sensitivity: 109 dB SPL/mW, Detachable cable, 3.5 mm TRRS jack for Android and iOS, Inline microphone for phone calls and other applications using speech, Suitable replacement ear sleeves (not included): EABKF1 and EASFX1, Colour: Silver, Includes various ear sleeves and a storage box