Jabra Engage 55 Mono Headset is designed for professional-sounding conversations. With a lightweight on-ear headband, it has a low clamping force to minimize pressure and provide maximum comfort all day long. Make calls while moving freely with this Jabra headphone, thanks to the Link 400 USB DECT adapter. Simply plug it in and start making calls - within 490ft/150m of your laptop. With the security-certified DECT adapter, Engage 55 not only has up to 15 times the wireless range of a conventional Bluetooth headphone, but also keeps your conversations secure thanks to military-grade 256-bit encryption algorithms.This on-ear headphone features wideband audio for a better calling experience, a noise cancelling microphone, and an adjustable Sidetone that ensures you hear your voice on calls. It’s also equipped with a Busylight that signals to others when you are on a call, preventing interruptions. SafeTone™ 2.0, PeakStop™, and IntelliTone™ 2.0 hearing protection technology prevents sudden loud sound spikes and general sound exposure. Certified to work with Microsoft Teams. 13-hour battery life. Includes a 2-year warranty.Jabra Technology for Life’s new rhythm. Whatever you’ve got going on, we’ve got just the thing. So find your rhythm and start enjoying life on your own terms.