High-quality stereo headphones using Bluetooth v.5.3 technology with a built-in Active Noise Cancellation (ANC) system. By combining active and passive noise cancellation, Bluetooth headphones can significantly eliminate low and mid-frequency sounds associated with aviation, car engines and other annoying background noises. Enjoy music or an audiobook without the influence of extraneous, external sounds. The built-in microphone allows you to make phone calls and chat via instant messaging. The large capacity battery allows you to make long phone calls or listen to your favorite music. Easily adjustable, flexible headband. Large, soft ear cushions are covered with noise-absorbing leather-like material. They are perfect for long journeys, at work and in everyday use.