Beteran ECCI PR200MKII PR2002 MK2 Dynamic Balanced Armature IEMS In Ear HIFI Monitors DJ Studio Stereo Music Earphones Headphone Earbuds For Mobile Phone iPhone Samsung MP3 MP4 Music Player With the special design, PR200 MKII is wonderful for you to listen to music,bringing you to a new world. High performance T.P.E cord. 9mm dynamic high-performance drive unit Excellent music balance adjustment. Low impedance and high sensitivity You can enjoy your life with it while walking along the path in the park.