The special-edition red Shure SE535LTD are sound-isolating earphones designed to deliver extended frequency response, enhanced noise isolation, and convenient integration with mobile devices for musicians, vocalists, and audio engineers in live stage applications and daily travels. The RMCE-UNI detachable accessory cable features a 3.5mm TRRS connector and an in-line remote control and microphone. The supplied accessories include assorted sleeves, a 1/4" adapter, a premium case, and more.Triple high-definition balanced armature drivers effectively put a separate tweeter and dual woofers into each ear for rich, detailed audio and an 18 Hz to 19.5 kHz frequency response.The array of included sleeves offers a tight and comfortable fit, which yields up to 37 dB of passive noise isolation. The durable sweat-resistant housings protect the components from damage caused by moisture.