This wireless headset offers a professional-quality experience to keep you connected in your small office or cubicle. Connect the headset using the USB dongle for softphone calls using Skype or other conference app. Noise-canceling microphone screens out the surrounding noise to be heard as well as you can hear. You can also listen to music so you can concentrate on what you're doing instead of hearing those around you. LED indicator ring on the headset shows others when you're on a call. 3.7-volt, 300 mAh battery provides up to 10 hours of talk time & 240 hours of standby time. Bluetooth technology allows you to roam freely up to 33' away from your desk.