Connectivity Technology: WiredDynamic transducers deliver powerful, bass-driven sound16-ohm impedance is ideal for use with cell phones, tablets and portable music playersIn-ear-canal design provides ambient noise isolation to improve listening experience1.2 m asymmetrical cable with 3.5mm right-angled plug;the longer end goes behind the neck and into the opposite earSoft silicon ear-tips (S, M, and L size included) to optimize fit for comfort and sound quality