Clear stereo sound The ultra-wide digital band audio reproduces the sound with precision. Microphone with noise removal Conference calls and meetings will be more productive as the voice is sharply heard even in noisy environments. Microphone and volume controls on the cable Adjust the volume or activate the silence on the march with comfortable controls located on the cable. The luminous call indicator allows people to know that it is "occupied". Plug and Play simplicity No software. Just connect it and you can start your activity. Comfort throughout the day Ergonomic headphones and an adjustable microphone 270 degrees provide comfort throughout the day.