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Black mono over-ear headset with inline USB controller and 3.5mm jack

Jabra Enterprise Products

Jabra Enterprise Products Evolve 40 MS Mono wired headset 6399-823-109

SKU CH-7ZQZ-SA7NF MPN 6399-823-109

Mono USB headset with noise-cancelling microphone and inline call controls for focused conversations

  • Compatible phone brandsUniversal
  • Wearing styleOver-the-Head
  • Wearing styleCircumaural
  • ConnectionUSB 2.0/3.0, 3.5 mm jack
  • Cable lengthControl cable: 3.12 ft, HS cable: 3.94 ft
  • MicrophoneNoise cancelling unidirectional microphone
  • Professional calls with noise-cancelling unidirectional microphone
  • Focus in open offices using passive noise-cancelling ear cushions
  • Quick call control via inline USB controller unit
  • Simple plug-and-play setup with USB 2.0/3.0 or 3.5mm jack
  • Lightweight 5.03 oz mono design for all-day comfort

Jabra Evolve 40 MS Mono headset

The Jabra Evolve 40 MS Mono is a wired mono headset built for professionals who need clear voice communication in noisy offices. It connects through a USB 2.0/3.0 controller or a 3.5 mm jack and draws power from the host device. A noise-cancelling unidirectional microphone and circumaural ear cushions reduce background sound for both parties.

Suited for single-ear monitoring and UC platforms

Workers who prefer to keep one ear open for surroundings will appreciate the mono design and in-line call controls with LED indicators. The headset is certified for Skype for Business and works plug-and-play with major unified communications systems. Buyers who need stereo audio for immersive media or dual-ear noise isolation should consider other models.

USB controller and accessories included

The package supplies a USB controller that provides volume, mute and call-answer buttons, plus a protective plastic bag for the controller and another for the headset. A quick-start guide, warranty leaflet and warning leaflet complete the bundle so deployment can begin without extra purchases.

How it compares

Measured against everything we stock in Earbuds & Wired Headsets, at today’s prices. Recalculated every night.

Price $87.99
Pricier than about 91% of the 557 comparable items (median $30.99).

Specifications

Product
Brand nameJabra
Product lineEvolve 40 MS Mono, USB
Model name6399-823-109
Product typeMono Headset
Product colorBlack
Audio & video
MicrophoneNoise cancelling unidirectional microphone
Ports & slots
ConnectionUSB 2.0/3.0, 3.5 mm jack
Power
Power requiredUSB power supply by PC
Size & build
Cable lengthControl cable: 3.12 ft, HS cable: 3.94 ft
Product weight5.03 oz
Shipping weight0.91 kg
Package size254 × 254 × 102 mm
Compatibility
Compatible phone brandsUniversal
More details
Wearing styleOver-the-Head

Questions about this item

Which USB standard does the Evolve 40 MS Mono need on my PC for power and audio?

It draws power and carries audio over USB 2.0 or USB 3.0, so any standard USB-A port on a desktop or laptop will work.

Can I still use the 3.5 mm jack on my older desk phone or soft-phone dongle with this headset?

Yes, the headset includes a 3.5 mm connector alongside the USB controller, letting you plug directly into legacy desk phones or analogue ports without the USB cable.

How do I know the noise-cancelling microphone is active during a call?

The in-line control unit has LED indicators that light when the microphone is live and mute is off, giving immediate visual confirmation that the unidirectional mic is picking up your voice.

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