Corded headset Great for stationary work USB, 3.5mm jack connectivity Connect to 1 device Enhanced durability 2 year warranty Passive Noise-Cancellation Integrated busy light On-ear wearing style Plug-&-play Professional headset for greater productivity and amazing sound for calls and musicEngineered to boost productivity, the Evolve 40 is a corded headset for professionals who take calls at their desks and need to avoid interruptions. Connects using a USB or jack, includes an integrated busylight and is certified for Skype for Business, Cisco and more. Performance Certification CE, FCC, KCC, RCM, UL Country of origin China Plug and Play Yes Music playback Yes HD voice Yes Hearing protection technologies Jabra PeakStop, Jabra Safetone G616 Number of simultaneously connected devices (max) 2 Cable length 1.2 m Volume control Button Operating keys Volume +, Volume - Product colour Black Headset type Binaural Recommended usage Office/Call center Wearing style Head-band Product type Headset