EVOLVE 40 Designed for you: Professional corded headset for more efficient and productive work. UC certified = satisfaction guaranteed. When users can collaborate easily and productively, it increases satisfaction with both the UC platform and the headset. The Evolve 40 is UC certified and available as a Microsoft Teams certified variant - for true seamless communication. Passive noise... cancellation. Comfortable leatherette ear cushions and on-ear design for all-day comfort. Work with concentration. And stay focused. Signal to those around you that you're busy and don't want to be disturbed with the Busylight. The practical LED switches on automatically as soon as you are in a conversation. This way you avoid interruptions. But you can also switch on the Busylight manually. Stay connected thanks to the USB or 3.5 mm connection. Connect to the PC via USB-A or USB-C. Use the 3.5 mm jack to connect the headset to your mobile device * - such as a smartphone or tablet - to work or listen to music wherever you are. Intuitive call controls. Get easy access to the most frequently used functions, such as volume control or mute. You can also quickly and easily answer and end calls directly from the control unit. Plug-and-play installation. Instantly usable with all leading United Communications platforms. Easy to install - just plug in and go.