Jabra EVOLVE 40 UC mono USB headset has advance noise canceling technology built-in. Evolve 40 is equipped with soft leatherette ear cushions for comfort and used to reduce loud background noise in your environment. Jabra Evolve 40 UC mono is also equipped with a busy light to notify co-workers you're on a call. In addition Evolve 40 Mono is equipped with a 3.5mm jack built as part of the control unit for use for a smart phone (such as iPhone, Samsung Galaxy) or a tablet When it's not plugged into the USB port, the headset microphone boom arm fits seamlessly into the headband - the Evolve 40 turns into a personal headphone.
For more information, see Jabra Evolve 40 Mono datasheet