Jabra Evolve 65 UC Wireless Headset, Stereo – Includes Link 370 USB Adapter – Bluetooth Headset with Industry-Leading Wireless Performance, Passive Noise Cancellation, All Day BatteryEnjoy superior wireless connectivity and amazing sound for calls and music with the Jabra Evolve 65 Wireless Bluetooth Headset. With a range of up to 30 meters or 100 feet, you can work away from your desk and still maintain quality sound and service. Overcome interruptions with an integrated busylight that acts as a do-not-disturb sign for colleagues. Plus, simply wearing the call center headset provides passive noise cancellation thanks to the specially designed ear cushions that eliminate high-frequency noises such as human voices. Wirelessly connect the Jabra Evolve 65 via Bluetooth (also comes with USB dongle for PCs) or directly using the USB cable. Dual connectivity enables you to connect to your PC and one other Bluetooth device at the same time, so you can use this office headset on your preferred phone device. Enjoy the superior usability and functionality that this professional headset has to offer.Jabra Evolve 40 UC Professional Wired Headset, Stereo – Telephone Headset for Greater Productivity, Superior Sound for Calls and Music, 3.5mm Jack/USB Connection, All-Day Comfort Design, UC OptimizedThe Jabra Evolve 40 Professional Headset is built for greater productivity and amazing sound quality for calls and music. To block out distraction, this telework headset contains passive noise cancellation and has a special busylight that automatically turns red when you pick up a call to let others know to not disturb you. It can also be manually turned on so you can stay focused and undisturbed when needed. The on-the-ear design along with the leather-feel cushions provide all-day comfort so you can find inspiration between calls and enjoy your music without worry. If you’re heading out of the office, easily transfer your Skype for business and Lync PC calls to your smartphone and continue using the microphone headset while on the go. Plus, the 3.5mm jack lets you easily connect to personal devices, so you can work or listen to music wherever you are.