K4 Duo Head Strap Enhances Quest 3 & 3S Audio & Battery Life

For those looking to improve both the comfort and functionality of their Meta Quest 3 or 3S headset, a new head strap is now available. VR accessories manufacturer Kiwi Design has released the K4 Duo AIO Audio Head Strap with Battery.

K4 Duo – AIO Audio Head Strap with Battery

Kiwi Design has several head strap options for the current generation of Meta Quest headsets, including the H4 Boost Halo and the K4 Boost. The K4 Duo head strap now sits at the top of this pile as the company’s flagship product. Combining previously seen features like the comfort padding and the rear-mounted battery, the K4 Duo also boasts built-in audio.

Featuring two 2650mAh batteries for an additional 2-3 hours of use (approximately), the standout inclusion is those headphones. Each has a 40mm driver inside and can be fully adjusted to suit most ears. Interestingly, what could be the K4 Duo’s most innovative design feature is the Audio Switch Button. This allows users to flip between Quest’s built-in speakers and the K4’s. Great for testing the difference or for different listening scenarios.

The K4 Duo AIO Audio Head Strap with Battery retails for $159.99 USD. Sold through Amazon and Kiwi Design’s own store, there’s a limited-time launch discount available, dropping the price to $139.99.

Key Features

Compatible with Meta Quest 3 & 3S
Audio: 40mm Driver
Audio Switch Button
Ergonomic Design for Balance & Comfort
Battery & Audio USB-C Cable
45W Dual-Port Fast Charging
Battery Life: 2-3 hours (depending on use)
Battery Capacity: 20.4 Wh
Charging Time: Approx. 2.5 hours
Product Dimensions: 250 × 280 × 135 mm
Weight: 459g

Who is Kiwi Design?

Kiwi Design is one of the best-known VR accessories manufacturers. While the company does make products for Apple Vision Pro, PSVR 2 and Valve Index, Kiwi Design is better known for its extensive range of Meta Quest accessories.

From head straps like the aforementioned H4 Boost Halo and the K4 Boost, it also supplies carrying cases, facial interfaces, cables and simpler comfort headstraps without a battery.

Do you like the look of the K4 Duo head strap? Or do you already own some Kiwi products? Let us know in the comments!