Sennheiser Amperior Headphones, Blue Sleek, aluminum finish-available in silver and blue-appeals to style-conscious listeners Powerful neodymium magnets deliver lifelike, professional-level sound with a frequency response of 16 to 22,000 Hz Optimized for easy connection to the Apple iPad, iPhone and iPod.* Includes a tiny microphone and smart remote, allowing users to listen to music, talk on the phone, answer calls, control music and record memos on supported Apple devices. Rotatable ear cups for classic DJ-style, single-sided monitoring Two-year warranty