The Jabra Evolve 40 UC Mono is a Monaural headset for PC, Smartphone, and Tablet with excellent audio and a comfortable design. Enjoy high-quality audio and music straight out of the box, no setup required, just plug in and you're ready to go. Audio features include Wideband audio, Noise Cancelling microphone, and a Busy Light to act as a Do Not Disturb indicator when on a call. Control the volume of music, answer, end, and mute calls with the handy in-line control unit. With a lightweight design, soft leatherette ear cushion, and adjustable padded headband, the Evolve 40 Mono is ideal for all-day use. This headset is designed to improve concentration and conversations, with premium noise-cancelling technology that effectively creates a concentration zone for you in a noisy, open office. It offers amazing sound for calls and music, and is optimized for Microsoft Teams. Easily transfer your Microsoft Teams PC calls to your smartphone using Jabra Intelligent Call Transfer (JICT).