... NO.:PK3 Plug:3.5mm stereo Yuin PK3 headphone Earplug hi-fi earphone stereo audio earphones best earphones Ultimate traditional earphonesHi ... design, NOT in-the-earUltra low distortion, high impedance for hi-fi or professional monitorPK3 earphones are the ultimate traditional design ... Iriver, it can give you a feeling as top grade hi-fi headphones, not like average tiny earphones at all.Entry ...