Klipsch Image S4 Noise-Isolating Headset (Black) for $45.49 shipped.  Here is a screenshot for your reference.  It features dynamic moving coil driver, noise-isolating design, 4 sets of ear tips, 10Hz to 19kHz frequency response, 110dB/mW sensitivity, and 18 ohms impedance.  Most places have it for about $69 or more.