beyerdynamic Custom One Pro Plus Headphones with Accessory Kit and Remote Microphone Cable, Black Custom Sound Slider to change the sound anytime (closed, semi open, open design).Connectivity Technology: Wired Customizable Style: easily change color of the headband, ear pads, ear cups plates design, detachable cable... Crazy or Cool ... Style and look! Now includes new cable with microphone and remote, standard cable, suitable for smart phone, iPad, tablets, home audio or pro audio devices Variable Noise Reduction, adjust the Sound Slider for deeper bass and block out noises, or adjust to hear just a little outside sound, you design it! High quality. Made in Germany. Two year warranty from Beyer dynamic USA