The HD 471i Headphones from Sennheiser feature a closed around-the-ear design with neodymium magnets, and an in-line mic and remote for iOS smartphone devices. The headphones can be used for listening to music on both home audio and portable devices, or to make or take calls while providing maximum attenuation of ambient noise.
The ergonomic design of the HD 471i provides a comfortable fit, while the detachable, single-sided cable allows for improved freedom of movement.
Frequency Response:16 Hz to 24 kHz
Sound Pressure Level:114 dB (1 kHz/1 Vrms)
Total Harmonic Distortion (THD): <0.1% (1 kHz/100 dB)