User manual SONY MDR-NC60

[. . . ] The noise canceling circuit actually senses outside noise with built-in microphones and sends an equal-but-opposite canceling signal to the headphones. The environmental sound might not be heard if the microphone is covered with your fingers. Listening to music Before operating the unit, please read this manual thoroughly and retain it for future reference. [. . . ] ⷠWhen you turn the POWER switch on, the operation sound of the noise canceling may be noticeable. ⷠThe noise canceling function is only effective for noise in the low frequency band. Although noise is reduced, it is not canceled completely. ⷠWhen you use the headphones in a train or a car, noise may occur depending on street conditions. You can use the headphones without turning on the power. In this case, the noise canceling function is not active, and the headphones operate as passive headphones. ⷠHowling may occur if you do not wear the headphones correctly. ⷠHowling may occur if you place an object such as finger close to the noise canceling microphone. Keep the headphones away from mobile phones. 5 m, gold plated L type stereo mini plug)(1) Carrying case (1) Plug adaptor for in-flight use* (single/dual)(1) Gold-plated unimatch plug adaptor (stereo phone plug y stereo mini jack)(1) Operating Instructions (1) * May not be compatible with some in-flight music services. Design and specifications are subject to change without notice. After listening to music Turn off the power of the headphones. Clean the headphones with a soft dry cloth. ⷠDo not leave the plug dirty otherwise the sound may be distorted. [. . . ] Power does not turn on Noise canceling headphones reduce unwanted ambient noise, providing a quieter environment to enhance your listening experience. A microphone inside each earpiece works with electronic circuitry to create an opposite sound wave to cancel out the noise. Dual-use capability allows option to listen to music with or without noise cancellation · Built-in monitor function lets you silence the audio to listen outside · Supplied plug adaptor for easy connectivity to stereo or dual jack for in-flight music services Open the lid of the battery box, then push the position marked with "PUSH G". [. . . ]