KIWI design K4 Boost Battery Head Strap for Meta Oculus Quest 3/3S, Adjustable VR Headband Accessories with Dual Charge, Extend Playtime & Reduce Facial Stress for Kids and Adults
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Availability:
In Stock.
Arrives
Friday, Jan 30
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Size: K4 Boost Battery Strap
Features
- Extended Playtime with Enhanced Battery: Use the KIWI design battery pack to extend your gameplay time by a maximum of 3 hours. Designed for optimal performance and customized to meet your demands, you can play for longer without worrying about the battery running out. Please note that the environment and manner of use have an impact on battery life. Long-term high-power applications should be avoided.
- Dual Fast Charging: Charge your Quest 3S/3 and K4 Boost twice as quickly. In approximately 2.5 hours, fully recharge using a 45W adapter (not provided). The K4 Boost and HMD both receive a 65% charge in 60 minutes, allowing for 2.5 hours of playback.
- Tighten the Head Strap for a Secure Fit: The front and back of the head strap are balanced by the lightweight battery pack, which significantly lessens the weight on your head. To properly fit the virtual reality headset to your head and play games without worrying about discomfort, merely crank the rear knob or pull the adjustment VR accessories.
- Comfortable and Balanced Design: A balanced weight design eases strain on your head and neck, while the thicker cushioning and bigger back support lessen facial pressure. To provide a more comfortable fit, adjust the wearing angle up or down until it strikes the ideal balance between front and back weight.
- Safe and Reliable VR Headband: Various safety measures, including NTC and UL credentials, and high-quality components were used in its construction. With its 52-degree damping hinge and quick-adjust knobs, it's comfortable to wear and share with loved ones.
- Unique gift for Kids: A great gift idea for boys & girls, perfect for birthdays, Christmas, or any special event.
Brand: KIWI design
Color: White and black
Special Feature: Adjustable Headband
Connectivity Technology: USB
Included Components: Headstrap
Compatible Devices: Meta Quest 3/3S
Age Range (Description): Teens, Adults
Operating System: Oculus Integration
Field Of View: 52 Degrees
Connector Type: USB
Product Dimensions: 3.15 x 9.84 x 10.16 inches
Item Weight: 12.8 ounces
Item model number: QS02B
Batteries: 2 Lithium Polymer batteries required.
Date First Available: May 22, 2024
Manufacturer: Shenzhen Hongjiantou Technology Co., Ltd.
Language: English
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Jan 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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Similar Products
Top Amazon Reviews
Size: K4 Boost Battery Strap
I’m so glad I bought the KIWI design K4 Boost Battery Head Strap for my Meta/Oculus Quest 3S! This head strap has genuinely improved my VR experience. The extended battery pack gives me longer play sessions without constantly worrying about running out of power, which is perfect for longer games and adventures. The adjustable design makes it super comfortable to wear, and I love how balanced it feels — even during intense gameplay. The strap fits securely and takes pressure off my face, so I can enjoy VR without discomfort. Installation was easy, and it feels very sturdy. I also like that it charges both the headset and the head strap quickly, so I’m always ready to jump back in. Overall, this accessory has added serious value to my VR setup — highly recommend it!
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Reviewed in the United States on January 18, 2026 by Yoro
Size: K4 Boost Battery Strap
Looks just as pictured. Easy to assemble, comfortable, doubles your playing time and charges quickly. Between the top strap and wheel on the back, it can be adjusted quite easily and helps stabilizes headset better than with original strap.
Reviewed in the United States on January 21, 2026 by KB
Size: K4 Boost Battery Strap
This head strap is fantastic. Light, comfortable and well-balanced. Very simple to assemble, and keeps it's shape/sizing once you dial it in. Great purchase, Buy with confidence. That being said....a couple things to be aware of. 1. The battery CONSTANTLY powers the headset, even when it's off. When done charging, unplug the head strap battery cable until you use the headset again. 2. If sitting back in bed, or a high backed chair you can feel the battery pack against the back of your head. It's NOT uncomfortable, but you are aware of it's presence. 3. Threading the top of the head strap thru the center opening (over eyebrows) hole is really tight. Put a piece of masking tape over the end of the Velcro and feed that thru 1st. It pulls thru in seconds. You'll save a ton of aggravation. A great headset. No regrets. Adds an hour or two to your battery life.
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Reviewed in the United States on December 8, 2025 by Katkeeper
Size: K4 Boost Battery Strap
If you own a Meta Quest and you’re still using the stock headstrap that comes in the box, do yourself a favor and get this Kiwi headband. Seriously. I don’t know why Meta even bothers including that flimsy strap they ship with because it’s honestly terrible in comparison. I put up with the original strap for way too long. It was always sliding around, putting all the weight on my face, and leaving those annoying red marks on my cheeks after every session. I’d have to constantly readjust it and after maybe 30 or 40 minutes my face would start hurting and I’d have to take a break. Not exactly ideal when you’re in the middle of a game or watching something. This Kiwi headband completely changed the experience. The difference was obvious the second I put it on. Instead of all that pressure on my face, the weight is distributed way more evenly and a lot of it shifts to the top and back of my head. It sounds like a small thing but it makes a huge difference when you’re actually wearing it. Installation was pretty straightforward. Took me maybe ten minutes and I’m not particularly handy with this kind of stuff. The instructions were clear enough and everything clicked into place without any issues. No tools needed or anything like that. The build quality feels solid too. It’s got a nice rigid structure that holds its shape but there’s padding in all the right places so it doesn’t dig into your head. The back has this cushioned area that cups the back of your skull and honestly it’s just comfortable. I’ve done two hour sessions now without any discomfort which was absolutely not possible with the stock strap. The adjustment mechanism is also way better. You can dial it in to get the perfect fit and it actually stays put. With the original strap I felt like I was constantly tightening it because it would loosen up while I was playing. This one I adjust it once at the beginning and I’m good to go. My kids use the Quest too and we all have different head sizes, but it’s easy enough to adjust between users that it’s not a hassle to share. Quick twist of the dial and it fits whoever is using it. I honestly can’t believe how much better the Quest is with this headband. It went from something I’d use occasionally because it got uncomfortable to something I actually look forward to putting on. If you’re on the fence about upgrading your strap, just do it. You won’t regret it. One of the best accessories I’ve bought for my Quest hands down.
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Reviewed in the United States on December 31, 2025 by J. Buff
Size: K4 Boost Battery Strap
Very comfortable, the battery is very nice, my only issue is that it feels slightly less secure than other elite straps but still far more secure than the original strap. It’s a little big for my head but I have a small head. Something else nice is by plugging the battery into the headset and plugging the strap into a charger you can charge both at once with one cable. If you are thinking about buying it, go for it, very durable very premium feel. Would buy again
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Reviewed in the United States on December 26, 2025 by ILikeCheezPizza ILikeCheezPizza
Size: K4 Boost Battery Strap
So fed so good, way more comfortable and secure than the 3S setup, way more battery life, now we need a case! We did go back and buy the face mount as wel!
Reviewed in the United States on January 12, 2026 by Trevor
Size: K4 Boost Battery Strap
Excellent quality item, charges the headset while playing. Works very well. Super comfortable.
Reviewed in the United States on December 28, 2025 by A-Train
Size: K4 Boost Battery Strap
Just like the one I had for Quest 2, KIWI doesn't disappoint. Good fit, stability, and comfortable. The battery lasts quite a while, and the new passthrough charging is great. Well worth it, just get it!
Reviewed in the United States on November 5, 2025 by Amazon Customer