Far End Gear ECT1 XDU Stereo-To-Mono Noise Isolating Earphone, Fabric-Reinforced Cord, Black 42 inch long fabric-reinforced cord - Weighs in at 0.3 ounces (8 grams) Includes 3 sizes of rubber ear tips, to find your best fit Gold-plated Stereo 3.5mm plug (same as 1/8-inch size plug) Stereo-to-mono circuitry mixes left and right stereo channels together into one earpiece