Delivering sonic brilliance in a lightweight (6 oz.) design, RH2C dynamic headphones provide the perfect listening environment for use with portable keyboards or casual listening. Featuring a new ear cup design, RH2C offers increased noise reduction and long-term comfort with soft, vinyl ear cushions and an extra-wide headband. 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 25 Hz - 15kHz, Impedance 32 ohms, Sensitivity 92 dB/mW, Jacks 1/8 inch plug and 1/4 inch adaptor, Cord 8' cord, Weight 5.8 oz. without cord, One year limited warranty