Low-mass stereo in-ear headphones with a high-performance single high-definition microdriver. Frequency response: 22Hz–17.5kHz. Sensitivity @ 1kHz: 107dB SPL/mW. Impedance: 20 ohms. Sound-isolating design blocks up to 37dB of external noise. Includes ear tips in various sizes and styles for maximum comfort, as well as a carrying case and a detachable cable on each earbud. Transparent color.