Dyson OnTrac Headphones CNC Black Nickel 

• Best-in-class noise cancellation. 8 Active Noise Cancelling microphones sense outside sounds 384,000 times a second. Double-tap ANC control.
• Listen for up to two weeks. 55 hour battery life, even with ANC switched on.
• Enhanced sound range – 6Hz to 21kHz. Hear more, feel more.
• Create your colour. Make your headphones your own, with customisable outer caps and ear cushions in a range of colours and finishes.
• Engineered for all-day comfort. Soft microfibre ear cushions, even weight distribution and optimised clamp force. Tested on diverse head sizes to enable you to find a comfortable fit.