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Black over-ear wired headset with adjustable headband and flexible boom mic

Cyber Acoustics AC-204 Stereo Headset 3.5mm 30mm 32ohm .08lb

SKU CH-ZKSG-TG3KH

Stereo headset with 30 mm drivers, 32 ohm impedance and a unidirectional noise-cancelling boom mic that rotates for left or right use

  • TypeOver the Ear
  • ColorBlack
  • Driver Unit30 millimeters
  • Frequency Response20000 hertz
  • THDOver Ear
  • Input Impedance32 ohms
  • Unidirectional boom mic cuts ambient noise for clear calls
  • Adjustable headband and leatherette pads fit all-day sessions
  • Single 3.5mm plug works with any standard audio jack
  • Includes Y-adapter for separate headphone and microphone ports
  • Passive isolation blocks background sound without power

Classroom Stereo Headset

The Cyber Acoustics AC-204 is a wired stereo headset built for K-12 classrooms and home learning. It uses a single 3.5 mm plug and includes a Y-adapter for separate audio and microphone ports. The adjustable headband and leatherette ear pads are designed for durability and easy cleaning.

Passive Noise Isolation

Passive noise cancellation on the ear cups reduces ambient sound without requiring power. The unidirectional boom microphone is ambidextrous and flexible, positioning on either side to minimise background pickup during lessons or calls. No batteries or charging are needed for operation.

Universal Analogue Connection

Plug the headset directly into any device with a 3.5 mm audio jack, including computers, tablets and smartphones. The included Y-adapter splits the single connection into separate headphone and microphone plugs for dual-port PCs. The lightweight frame at 0.08 lb suits extended daily wear.

Highlights

  • Unidirectional boom mic cuts ambient noise for clear calls
  • Adjustable headband and leatherette pads fit all-day sessions
  • Single 3.5mm plug works with any standard audio jack
  • Includes Y-adapter for separate headphone and microphone ports
  • Passive isolation blocks background sound without power

Specifications

BrandCyber Acoustics
ModelAC-Parent, AC-204
Part NumberAC-204
TypeOver the Ear
ColorBlack
Driver Unit30 millimeters
Frequency Response20000 hertz
THDOver Ear
Input Impedance32 ohms
Power Supplyfalse
Connector3.5mm
Ear CouplingOn ear
Weight0.08 pounds
Noise CancellingPassive
Wireless TypeAM
Charge Time20 hours
Microphone Impedance~3K ohm
Microphone Frequency Response20000 hertz
Featurespassive_noise_cancellation, Tangle Free, Noise Control, voice, Wired, Over Ear, dynamic_driver, 32 ohm

Questions about this item

How do I connect the AC-204 headset to a computer that has separate microphone and headphone jacks?

Plug the single 3.5 mm connector into the included Y-adapter, then insert the adapter's pink plug into the microphone jack and the green plug into the headphone jack.

What part of the AC-204 will need cleaning or replacement after extended classroom use?

The leatherette ear pads can be wiped clean; if they wear out they are the only user-serviceable part mentioned.

At what volume level does passive noise isolation on the AC-204 stop blocking background sound?

Passive isolation reduces ambient noise at normal listening levels; very loud environments will still bleed through the on-ear seal.

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