Dual Ear USB Headset for Softphones are specifically made for comfort and superior audio quality. Lightweight, dual-ear headset features super-soft leatherette ear cushions and a 360-degree rotating boom so you can put the microphone and cord on either side. Ideal for busy environments, the noise-canceling mic blocks up to 80 percent of background noise for clear sound to your listeners. The 40mm speakers give you top-quality audio.