EMPIRE Black Rubberized Hard Case Cover + 3.5mm Male to Male Stereo Auxiliary Cable for T-Mobile HTC Sensation 4G Premium high quality snap-on hard cover case protector. Made to fit phone perfectly. Plug in your charger, cable, or headset without removing the case. Listen to music on any stereo that features a 3.5mm aux input port. Great way to hook up your phone/iPod to your cars stereo.