KENWOOD wireless headset with noise-canceling function, perfect for telework. - Brand: KENWOOD - Model: KH-M700 - Type: Wireless headset - Features: Noise-canceling - Application: Telework - Bluetooth version: 2.4GHz I used it for about a week, but the shape of the ear tips was unique and not to my liking, so I stopped using it and stored it. I have no plans to use it, so please, someone use it. Please check the condition and accessories in the images. There is no instruction manual.