It takes you right down in front of the stage, where you can feel the energy and emotion of the performer. The Klipsch Reference Over-ear headphones make it convenient to hear that exciting sound on the go. They connect using a 3.5mm miniplug, and feature in-line controls for music and calls. Product highlights: closed-back, over-ear design helps keep out external noise 40mm Klipsch Balanced Dynamic drivers designed to emulate the company's loudspeakers immediate, up-front soundstage lower distortion for clear, accurate sound clean, solid design and build detachable 48" miniplug cable with three-button remote and microphone for iPhone folding design for easy storage memory foam earpads and padded headband for comfort includes hard travel case frequency response: 15-20,000 Hz sensitivity: 110 dB impedance: 32 ohms weight: 8.9 ounces What's in the box Over-ear headphones (white) 50" Straight cable with in-line mic/remote (3.5mm plug) Hard zippered case Owner's Manual