Developed for studio or road application, RH3C stereo headphones are equipped with professional-quality elements that boast the impressive bass presence and clear treble response studio musicians demand. The closed-ear, noise-reducing design features a coiled cord and a thickly padded, collapsible headband for lasting comfort and traveling convenience. Understanding the ear is an instrument critically trained to demand perfection in sound reproduction, musicians know that high-quality headphones are a vital component of any music system. Yamaha's complete headphone line utilizes the latest in technology, ergonomics, and sound quality for musical applications ranging from economy to professional level. From music creation to music reproduction, Yamaha audio equipment has been recognized as the industry standard for more than 30 years. Respected professionals depend on Yamaha to help them achieve award-winning sound. Whether you are listening to music on-the-go or in the studio creating the next big hit, demand perfection. We do. Compatible with all audio devices. Equipped with 1/8 inch plug and 1/4 inch adaptor. Frequency Response 18 Hz - 20 kHz, Impedance 100 ohms, Sensitivity 103 dB/mW, Jacks 1/8 inch plug and 1/4 inch adaptor, Cord 8' cord, weight 8.2 oz. without cord, One year limited warranty