Scosche IEM856MD Reference In-Ear Monitors with tapLINE III Remote & Microphone (Black) Dual driver in ear monitors with tapLINE III remote & microphone Hybrid dual driver system Balanced armature & high quality dynamic drivers matched & coupled for unparalleled acoustic performance Tangle-free flat cable construction S, M, L, single & dual flanged silicone inserts provide a superior fit for increased noise isolation & comfort The IEM earphones feature tangle free flat Cable construction. S/M/L single and dual flanged silicone inserts. Provide a superior fit for increased noise isolation and comfort . Includes genuine leather travel case.