Noise Cancellation Communication - Bluetooth call center headphones have noise cancellation function, which can keep background noise outdoors and clean surrounding noise to create clear communication. Comfortable to wear - the microphone supports 270 ° rotation. Adjustable headband, suitable for heads of different sizes to wear, even if worn for a long time without feeling fatigue or pain. Charging dock - convenient for storing and charging headphones, making your computer desktop cleaner and more aesthetically pleasing. Make your work easy. Long talk time - Type-C fast charging, which has a built-in 300mAh lithium battery, can provide you with up to 17hours of ultra long continuous talk time. You don't have to worry about it suddenly losing power. HiFi Sound Quality - Experience HiFi lossless music to the fullest, providing a truly stunning sound experience. Clean and thorough, using PET diaphragm to restore the true original-sound. Universal Compatibility - This call center Bluetooth headset can connect to devices such as computers, phones, desktops, etc. with Bluetooth devices, achieving clear, stable, and smooth communication without jamming or delay. Colour:Black Material:Plastic Package Contents: 1 * Noise Cancelling Headphone 1 * Base 1 * USB Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.