Sony MDR-NC750WH In-Ear Headphones with Built-in Microphone

Noise cancelling headphones sample ambient (surrounding) noise through a microphone built into the headphone unit and use signal processing to cancel ambient noise. Digital noise cancelling goes one step further by analysing the ambient noise in detail and filtering it out. Avoid using headphones with the volume turned up for an extended period of time, doing so can damage your hearing. It is advisable to keep the volume at a moderate level at all times. For your own safety, please do not use when driving or cycling.