AC-840 - Headsets - By Cyber Acoustics
EDUCATION ID = 2. Current ID = 1
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Reviews (6)


tom 4/22/2015

correction on recent review

I am the first to say I made a mistake-disregard my previous review, the work great

ken 1/10/2013


is my 3rd one in 3yrs and its a no brainer plug it init works and far as noise i haven't heard any but with some usb connections there are driver issues im running win7 no problems here

Brady 4/3/2011


I have one of these and it works great! The only problem is some times you here a buzz in the background when using the mic. Besides that this product is comfortable and has great drivers.


USB Mono Headset

Slick, comfortable, and awesome quality, the AC-840 USB mono headset is a great choice for anyone doing VOiP. Bring your ears to attention with the AC-840’s 30mm dynamic driver. The adjustable, over the head design fits comfortably on any head size, and the flexible, noise-canceling boom mic’s 180-degree rotation gets the job done, no matter your preference. The in-line volume control and mute switch are conveniently located within reach, and comfort is no issue with the AC-840’s soft, leatherette ear pads. 

- In-line volume control and mic mute
- DNCT4: Direct Noise Cancelling Microphone Technology
- 180 degree microphone
- Leatherette ear pad
- Adjustable boom arm
- Ambidextrous design (wear on right or left side)
- PC and Mac compatible 



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Frequency: Headset: 20-20,000 Hz / Microphone: 100-16,000 Hz
USB: Yes
Headband: Over the head and adjustable
Microphone: Unidirectional: 62dBV/Microbar and 42dBV/Pascal
Drivers: 30 mm dynamic drivers
Cable Length: 7 ft.
In-line Volume/Mute: Yes

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EDUCATION ID = 2. Current ID = 1