The special-edition blue Shure SE215SPE are sound-isolating earphones designed to deliver clear sound with extended bass, 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 zippered case, and a charging cable. Each earpiece utilizes a high-definition driver for clarity across its 21 Hz to 17.5 kHz frequency range. 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.