Jabra EVOLVE 40 MS Stereo Wired Headset
Jabra Evolve 40 MS Stereo (Model: 6399-823-109) is a professional wired headset designed for high-quality audio and seamless communication in office environments. Below are the detailed and optimized specifications:
Technical Specifications
- Connectivity:
- USB Type-A (for PC/laptop)
- 5mm audio jack (for mobile devices)
- Wearing Style: Binaural (stereo), over-the-headMicrophone:
- Type: Noise-cancelling boom
- Frequency Response: 100–10,000 Hz
- Sensitivity: -44 dB
- Pick-up Pattern: Unidirectional
- Speakers:
- Driver Size: 28mm
- Frequency Response: 20–20,000 Hz
- Impedance: 32 Ω
- Sensitivity: 93.6 dB SPL @ 1kHz
- Maximum Input Power: 10 mW
- Controls:
- In-line control unit with LED indicators
- Functions: Mute, volume adjustment, answer/end calls
- Cable Length:
- Headset cable: 1.2 m
- USB control cable: 95 cm
- Weight: Approximately 171 g
- Certifications:
- Certified for Microsoft Teams and Skype for Business
- Compatible with major UC platforms
Key Features
- Dual Connectivity: Connects via USB-A for PC/laptop and 3.5mm jack for mobile devices.
- Noise-Cancelling Microphone: Reduces background noise for clear voice transmission.
- Passive Noise Cancellation: Leatherette ear cushions help block ambient noise, enhancing focus.
- Plug-and-Play Setup: No software installation required; compatible with major UC platforms.
- Comfortable Design: Lightweight with adjustable headband and padded ear cushions for extended use.
- In-Line Call Control: Manage calls and audio settings conveniently via the control unit.
- Busy Light: Integrated busylight automatically turns on during calls to signal “do not disturb.”
What’s in the Box
- Jabra Evolve 40 MS Stereo headset
- USB control unit
- 5mm audio cable
- Carrying pouch
- Quick start guide
- Warranty and safety leaflets
- User Tips
- Microphone Placement: Position the boom mic approximately an inch away from your mouth for optimal voice clarity.
- Adjusting Headband: Ensure the headband is snug but not tight to maintain comfort during extended use.
- Cable Management: Use the included carrying pouch to store the headset when not in use, preventing damage and tangling.








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