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Availability:
In Stock.
Arrives
Friday, Oct 30
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At a glance
- Condition
- New
- Size
- K4 Duo Headphone Strap
- Model
- QA05B
- Color
- Black
- Operating System
- Oculus OS
- Field Of View
- 110 degrees
- Connector Type
- USB Type C
- In the box
- Headstrap
- Warranty
- 2 year
- Works with
- Game Console
Features 5
- All-in-One Audio Head Strap with Battery: The K4 Duo Headset revolutionizes your VR experience by combining premium audio and charging into a single, streamlined solution. Unlike other accessories that require multiple cables, our patented single-cable design delivers both power and crystal-clear sound simultaneously.
- High-Quality Sound, Immersive Experience: The K4 Duo AIO is equipped with dual 40mm dynamic drivers, delivering balanced sound and deep bass to enhance your immersion. Instantly toggle between deeply immersive headphones and the headset's built-in speakers with just one button press. Perfect for when you need to quickly hear your surroundings or share audio with friends.
- DualFast 45W Charging: Powered by dual PD chips, our advanced charging system juices up both your headset and K4 Duo at maximum speed through just one USB-C connection. With 45W max input power, you can achieve a full charge in just 2.5 hoursthat's 30% faster than standard charging solutions. Never miss a moment in VR due to a low battery again.
- Engineered for Perfect Balance & Comfort: K4 Duo Audio Head Strap achieves a near-perfect weight distribution with your Quest 3/3S. The strategically positioned headphones act as a counterweight, making rapid head movements feel more stable and natural during intense gameplay. 3-degree-of-freedom adjustable headphones provide a customized fit for every head shape and size.
- Safe and Durable, Reliable Use: The K4 Duo AIO is built with high-quality battery cells, certified by NTC and UL, and rigorously tested in TUV laboratories, ensuring product safety and reliability, so you can enjoy your VR experience with peace of mind.
Description
Proud Partner of Meta’s ‘Made for Meta’ Program. KIWI design is a user-centered accessories brand for personal technology. Founded in 2015, we began by creating XR accessories that addressed real user needs in comfort, power, control, protection, and immersion. No sounds？ Please try the following steps: 1.Make sure your device volume is turned on and set to maximum. 2.Ensure the USB-C plug is fully inserted until you hear a click. 3.On Meta Quest: go to Settings > Sound and switch audio output to the external headset Does K4 DUO has 3.5mm audio jack？ K4 DUO uses a USB-C interface only — it does not have a 3.5mm jack. Does K4 DUO support microphone or voice call functionality? No. K4 DUO is a USB-C audio output device only — it does not support microphone input or voice calls.
Specs 29
| Brand | KIWI design |
|---|---|
| Color | Black |
| Special Feature | Adjustable Headband, Built-In Speakers, Quick Charge |
| Connectivity Technology | No 3.5mm Jack, USB-C Interface |
| Specific Uses For Product | Gaming |
| Age Range (Description) | Adult |
| Operating System | Oculus OS |
| Field Of View | 110 degrees |
| Additional Features | Adjustable Headband, Built-In Speakers, Quick Charge |
| Connector Type | USB Type C |
| Sensor Technology | Accelerometer Gyroscope Magnetometer |
| Battery Average Life | 2.5 hours |
| Display Maximum Resolution | 1832 x 1920 |
| Platform | Meta Quest |
| Resolution | 1832 x 1920 per eye |
| Display Type | LCD |
| Controller Type | Motion-sensing controller |
| VR Operating Platform Compatibility | Standalone |
| Display Resolution Maximum | 1832x1920 per eye |
| Built-In Media | Headstrap |
| Age Range Description | Adult |
| Model Number | QA05B |
| UPC | 850052498276 |
| Manufacturer | Shenzhen Hongjiantou Technology Co., Ltd. |
| Item Highlight | Maximize the Immersion, DualFast Charging in 2.5h, Balanced Design, Enhanced Sound Effects, Add Playtime, USB-C Interface |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Number of Packs | 1 |
| Mfr Part Number | QA05B |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Oct 30
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Awesome Head Strap, Sound, and Extra Battery!!!
Super comfy head strap and the audio and battery charger work amazingly!
Reviewed in the United States on January 4, 2026 by Eric Behrends
Great addition to the quest
Great comfortGreat product couldn't recommend more to the long term player.The compatibility, the battery life, the sound quality top notch.
Reviewed in the United States on December 14, 2025 by Sean H Sean H
Useful AF
Definitely a comfort upgrade from the original strap. The extra battery life is essential. I do dislike that while charging the battery pack, it will stop charging the headset, which will then run out of battery if you're not careful. The headphones are good quality and comfortable on top of my ears, but they sit awkwardly on the sides sometimes and get caught against the plastic. Still, manageable issues for an otherwise very useful product.
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Reviewed in the United States on November 5, 2025 by Dandsomest
Overall great extender of battery
Feels great around my top and back of head and the audio I can hear all around me without even having to put them to my ears. Excellent addon
Reviewed in the United States on December 17, 2025 by Rodrigo Castillo Jr.
Good buy
Rcvd quickly. Well made, not a flimsy piece of junk. Easy connection. Good quality sound through microphone.
Reviewed in the United States on December 29, 2025 by Rebecca Haines
Good, but not for me
The KIWI audio headset is the first attempt for external audio for the Quest 3/3S. The sound quality is very good and the headset itself is very comfortable. But the foam on the earphones are irritating to me and I wish they would make over the ear headphones. Plus the KIWI headset is a battery strap but doesn’t allow swappable batteries and that limits the amount of time I can play in VR. So if u want a comfortable headstrap with good audio but limits your gametime this is the headset for you; I would like more comfortable earphones and a way to increase my play time in VR
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Reviewed in the United States on September 1, 2025 by Eagledocstew Eagledocstew
Good very good
Love it ive used it so much worth it wish the head phone quality was better but it's fine for the price
Reviewed in the United States on December 28, 2025 by william hartwell jr
Great for audio and comfort.
Outstanding. Bought it for the audio improvement. I didn't want to mess with headphones or earbuds. Audio quality is very good and an order of magnitude better than the built in speakers. Comfort is also good, with bets feel on my face and head. I wish this had a fan built in, as i sweat a lot, but i think the audio improvement is more important than a fan. Obviously, the battery gives more play time, as well.
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Reviewed in the United States on July 4, 2025 by Gregory