Featuresr piston design give you a better sound qualityr y1 stereo earphone hifi high sensitivity ergonomic design arc profile in line controlr designed to deliver rich and detailed soundr comfortable to wear minimalist and lightweight earphone comforts your earsr ergonomic design ergonomic ear clips keeps earphones stay comfortably and securelyr in line control mic integrated control remote and mic enables you answer calls and switch songs not support for iphone 7 7 plus 4 4s