[[1DD+2BA combos]:13.6mm bass dynamic driver and 2 flagship-level BA drivers for treble and mids it is suitable for listening HiFi musical ensembles instrumental music pop music and so on. [Gold-plated 0.78mm 2pins connectors]: The earphones JH3’s usage of the 0.78mm 2pins connectors ensures compatibility with a wide variety of cables including wireless Bluetooth connections such as the FiiO UTWS3. As long as your other earphones which is also with standard 0.78mm 2pins connector then you could replacement the cable for it. [3.5mm headphone jack]: Compatible with Android iPhone iOS devices for smartphone laptop computer player listening music or playing game/watching TV shows/doing meeting/phone call and so on. [Hi-Res Audio certified]: The JH3 earbuds has been certified by JAS and CEA its ability to bring you accurate high-fidelity audio as the artist intended. You could enjoy a clear hifi sound for this earphone. [Abundant accessories & parameters]: Accessories: headphone cable*1 carrying case*1 balanced ear tips*3 pairs (SML) bass ear tips*3 pairs (SML) foam ear tips*1 pair (M) instruction manual*1; Parameters: 10-40kHz frequency response 106dB impedance 28Ω sensitivity.]