Open workspaces are great for collaboration, but not so great when the noise around you makes it hard to concentrate. Active noise cancellation substantially reduces unwanted ambient sound, so you can get focused and stay focused. Great for music and talking with immersive sound for listening to music and a noise-canceling microphone that ensures that your voice is heard on the other end of a call—not the noise around you. Intuitive and simple controls to adjust volume, play and pause music, start and end calls, flip-to-mute the microphone, power on\/off, active noise cancellation, and Bluetooth pairing. Also supports wireless Qi charging. Designed to be comfortable for use all day, every day. The silicone-padded headband is lightweight and provides just the right clamping force for a great fit. Soft leatherette ear pads are cushiony and breathable, so your ears don't get hot. Connect to your computer and smartphone simultaneously and seamlessly switch between connected devices at will. The 30m (100 ft) wireless range provides freedom to roam while staying connected. Connect up to six Logitech unifying wireless peripherals through a single USB Unifying + Audio receiver. Provides a reliable connection up to 10 m away from mice\/keyboards, and up to 30 m away from the headset.