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Description
Cyber Acoustics AC-840 Internet USB Mono Headset30mm Dynamic Driver Noise Cancelling Boom Mic In Line Volume and Mute Control Leatherette Earpad Wear on Right Left Side PC and Mac Compatible The Cyber Acoustics AC 840 Internet USB Mono Headset is an adjustable, over the head style headset that can be worn on your right or left side. It connects via USB to a PC or Mac. Featuring a 30mm dynamic driver, the headset makes an ideal choice for Voice over Internet Protocol (VoIP). It has a flexible noise
- 30mm Dynamic Driver
- Noise Cancelling Boom Mic
- In-Line Volume and Mute Control
- Leatherette Earpad
- Wear on Right/Left Side
- PC and Mac Compatible
The Cyber Acoustics AC-840 Internet USB Mono Headset is an adjustable, over-the-head style headset that can be worn on your right or left side. It connects via USB to a PC or Mac. Featuring a 30mm dynamic driver, the headset makes an ideal choice for Voice over Internet Protocol (VoIP). It has a flexible noise-cancelling boom mic with in-line volume control and a mute switch. The mic can be rotated 180 degrees for convenience. Additionally, the headset is outfitted with a leatherette earpad for comfort.
- In-line volume and mute control
- DNTC4: Direct Noise Cancelling Microphone Technology
- 180-degree microphone
- Leatherette earpad for comfort
- Adjustable boom arm
- Can be worn on the right or left side
- PC and Mac compatible
UPC: 646422101323
| Style | Over-the-head |
| Frequency Range | 20 - 20,000 Hz |
| Microphone | Unidirectional: 62dBV/Microbar and 42dBV/Pascal |
| Mic Frequency Response | 100 - 16,000 Hz |
| Driver | 1.2" (30 mm) |
| Cable Length | 7.0' (2.1 m) |
| Dimensions | Not specified by manufacturer |
| Weight | Not specified by manufacturer |
| Packaging Info | |
|---|---|
| Package Weight | 0.4 lb |
| Box Dimensions (LxWxH) | 7.4 x 5.9 x 2.2" |
In the Box
Cyber Acoustics AC-840 Internet USB Mono Headset
- 1-Year Limited Warranty
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 4
Good Value Screen Protector That Gets the Job Done
Model: iPad 11th A16 2025/10th
For the price, this screen protector does a pretty good job. The glass feels smooth and responsive, and I didn’t notice any issues using my Apple Pencil after installing it. The screen still looks clear, and fingerprints wipe off easily most of the time.
Installation was easier than I expected, although getting rid of every tiny dust particle was still a little frustrating. I did get a small bubble on one corner, but it mostly disappeared after a day. The protector feels durable enough for everyday use and gives me peace of mind carrying my iPad around.
It’s not a premium brand, but for a budget-friendly 2-pack, I think it’s worth it. Good value overall if you just want reliable screen protection without spending a lot.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Strong almost scratch proof durable, no bubbles when installing
Model: iPad 11th A16 2025/10th
Stronger then it looks. Work construction and it's never let me down. Way easy to put on with no bubbles clear almost scratch proof. As work is hard on my phone perfect fit every time
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Excellent product
Model: iPadAir 8/7/6th/iPadPro 8/7th 2026/25/24, Model: iPadAir 8/7/6th/iPadPro 8/7th 2026/25/24
I was a bit nervous on the sizing when I first ordered it but it fit perfectly!! Good product and super easy to put on! Will be ordering the same one if needed! Definitely TRUE TO SIZE
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Ailun screen protector WORKS Great!
Model: iPad 11th A16 2025/10th, Model: iPad 11th A16 2025/10th
Lifesaver tempered glass cell phone protector. Smooth, thin and appears like the cell itself. Reactive to cell touch and no lag time.
I recently had a terrible accident from a heavy metal yeti mug fall onto my cell. I was livid when I realized my cell phone was sitting on the counter and was struck hard and thought my phone was severely damaged.
I remember I had placed the glass screen protector on and slowly peeled it off. To my happy amazed discovery, the Ailun screen protector truly protected my cell phone from damage. The stick on cover took the brunt of the metal mug falling 2-3 feet above my phone!!! Saved me alot of headache, money to replace the phone which was an important special gift, and anguish.
I will use this product again for future phones when I run out of cell life. Take a look of the cracked glass cover which helped me!!
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Reviewed in the United States on May 14, 2026
★★★★★ 5
Great case for my iPad
Color: 1-Navy Blue, Color: 1-Navy Blue
I really like this case. It fits my iPad perfectly and the quality feels very good and durable. It protects well and looks nice too. The stand works great for watching videos, and all the buttons and ports are easy to use. Overall, a great case for the price. I would recommend it.
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Reviewed in the United States on April 13, 2026