Klipsch Image S4 Noise-Isolating Headset (Black) for $49.99 shipped.  Add the product to the cart to see the discounted price.  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 [...]