Introducing the Sony WH-1000XM4 wireless headset in black. This headset comes in a sealed box and is brand new. It features an adjustable headband, noise cancellation, foldable design, closed back, and built-in microphone for easy use on the go. The headset connects wirelessly through Bluetooth technology and has a double earpiece for maximum sound quality. It is perfect for listening to music or taking phone calls hands-free. This Sony WH-1000XM4 model is perfect for those who want a high-quality wireless headset that is both comfortable and convenient. The headset is a great addition to anyone's audio collection, and with its sleek black design, it is sure to look great wherever you take it.