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Black over-ear headset with inline USB-A control unit

Jabra Enterprise Products

Jabra Enterprise Products Evolve 20 GSA4999-823-109 headset

SKU CH-DZP4-5DAXM MPN GSA4999-823-109

Circumaural stereo headset with 28 mm drivers, 150 Hz–7 kHz response and USB-A connection for clear calls

  • ColorBlack
  • Driver Unit28mm
  • Headphone Frequency Response150Hz-7KHz
  • Headphone Sensitivity93.6dB SPL @ 1kHz
  • ConnectorUSB-A
  • Ear CouplingCircumaural
  • Clear voice calls with 150Hz-7KHz frequency response
  • Comfortable all-day wear via circumaural 28mm drivers
  • Plug-and-play USB-A connection for instant setup
  • Flexible desk movement with 95 cm control and 120 cm headset cables
  • Lightweight 4.66 oz design reduces neck strain

Jabra Evolve 20 USB-A Headset

The Jabra Evolve 20 is a wired circumaural headset designed for office communications. It connects through a USB-A port and includes an inline control unit for call handling. The 28 mm drivers produce a frequency response of 150Hz-7KHz tuned for voice clarity.

Suited For Desk-Based Voice Work

This model suits professionals who spend long hours on calls at a fixed workstation and want a lightweight headset with simple USB connectivity. Buyers who need wireless freedom, active noise cancellation or a different analogue connector should look at other products.

USB-A Connector Decides Compatibility

The single specification that determines fit is the USB-A connector; the host device must provide a compatible port and driver support. Without an available USB-A socket the headset cannot function, so verify the port before purchase.

Highlights

  • Clear voice calls with 150Hz-7KHz frequency response
  • Comfortable all-day wear via circumaural 28mm drivers
  • Plug-and-play USB-A connection for instant setup
  • Flexible desk movement with 95 cm control and 120 cm headset cables
  • Lightweight 4.66 oz design reduces neck strain

Specifications

BrandJabra
ModelEvolve 20
Part NumberGSA4999-823-109
ColorBlack
Driver Unit28mm
Headphone Frequency Response150Hz-7KHz
Headphone Sensitivity93.6dB SPL @ 1kHz
ConnectorUSB-A
Ear CouplingCircumaural
Cord LengthControl cable: 95 cm/37.40 in, HS cable: 120 cm/47.24 in
Weight4.66 oz.
Shipping weight0.23 kg
Package size229 × 178 × 51 mm

Questions about this item

Does my computer need a USB-A port for the Jabra Evolve 20 headset?

Yes, the headset connects through a USB-A connector so the host device must provide a USB-A socket or a compatible adapter.

Will the 95 cm control cable reach my desktop tower if I keep the PC under the desk?

The control cable measures 95 cm and the headset cable 120 cm, giving a combined length that typically reaches a floor-standing tower from a seated position.

How can I confirm the microphone is active after plugging in the Evolve 20?

The inline control unit has a microphone mute button with an LED indicator; when the LED is off the microphone is live and transmitting audio.

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