Jabra Engage 55 is designed for professional-sounding conversations. With an ultra-lightweight design and an ear hook, neckband, and headband, you get to choose the wearing style that suits you best. 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 Unified Communications. 9 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.IN THE BOX — 1x Jabra Engage 55 Convertible Headset with Ear Hook and Gels, Neckband and Headband, USB-A DECT Adapter, Travel Pouch and Safety Leaflet, Headset Weight: 21g / 0.63oz, Color : Black. HIGH PERFORMANCE — Jabra Engage 55 features an ultra-lightweight design for all-day comfort with three wearing styles and hearing protection technology to avoid unexpected peaks of loud sounds. Up to 9 hours of battery life. MORE FLEXIBILITY — The bendable, pre-paired DECT adapter can remain plugged into the laptop, for fast connectivity and hybrid working. This Jabra headset is certified for Unified Communications (UC) and works with all other platforms. PROFESSIONAL QUALITY CALLS — Have clear conversations with the built-in noise-cancelling microphone and wideband audio, hear your own voice with the adjustable sidetone, and signal when you're on a call with the Busylight with this hands-free headset. SECURE, HANDS-FREE CALLS — With the innovative USB DECT adapter included with this Jabra noise cancelling headset, enjoy a seamless connection at a range of up to 150 m / 490 ft from your laptop, as well as encrypted conversations.