Professional headset for greater productivity and amazing sound for calls and music. Passive noise cancellation for ideal concentration: Keeps high-frequency noise such as human voices out for better work collaboration and listening experience in any environment. Get more productive: Busy light automatically turns on during a call to let others know the person is busy – Can be activated manually to signal no disturbance wished. Microsoft Teams certified and built for style and comfort with a soft leatherette ear cushion – Adjustable headband lets you find the right fit. Easy call management: External sound controller allows for making, taking and muting calls – The 3.5 mm jack lets you connect to your personal device to work or listen to music wherever you are. Scope of delivery: Jabra Evolve 40 MS mono on-ear headset, USB-C cable with control unit, 3.5 mm jack, neoprene pouch – Weight: 142g – Colour: black. Product comes with 2-year warranty.