&lt;b&gt;Active noise cancellation&lt;/b&gt;&lt;br /&gt;Eliminate unwanted low-frequency background noise at the touch of a button. This lets you stay focused even in noisy office environments.&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Passive Noise Cancellation&lt;/b&gt;&lt;br /&gt;Simply wear the headset to eliminate high-frequency noise such as human voices - all thanks to the specially designed ear cushions. We call this passive noise cancellation. &lt;br /&gt;&lt;br /&gt;&lt;b&gt;Shut out office noise and increase your productivity&lt;/b&gt;&lt;br /&gt;You can switch on active noise cancellation to virtually eliminate low-frequency sounds like the hum of air conditioning. Active noise cancellation uses advanced microphones to monitor and counter ambient noise.&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Busy light&lt;/b&gt;&lt;br /&gt;The special busy light turns red to let people know when youre on the phone. You can also turn it on manually when you dont want to be disturbed.&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Works with All Mobile Devices&lt;/b&gt;&lt;br /&gt;Works straight out of the box with all leading UC systems and the the 3.5mm jack lets you connect to a PC smartphone tablet or any other personal device.&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Intelligent Call Transfer&lt;/b&gt;&lt;br /&gt;Is your meeting running over? Easily transfer your Skype for Business call before you leave the office. Disconnect the 3.5mm jack and plug it into the smartphone. Your call will be instantly transferred.&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Availability by choice&lt;/b&gt;&lt;br /&gt;Activate the red busy light to create your own concentration zone and keep you from being disturbed.&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Compatible with your platform&lt;/b&gt;&lt;br /&gt;All Jabra USB headsets and speakerphones work with all the most popular online voice call services. Our products work out of the box and let you combine perfect sound quality with great comfort.