The K4 Duo AIO Audio Head Strap with Battery, officially titled ‘K4 Duo Audio Head Strap with Battery, provides a quick switch where you can swap between the headset or K4 Duo’s audio once it is plugged into the USB-C port. The K4 Duo has a battery with a capacity of 2650mAh and weighs only 459 grams. It also includes features similar to KIWI’s other headbands. That includes a turn wheel at the back for tightening it, dual charging for both battery and headset at once, memory foam padding and a top strap design.
Further testing is required before we can fully assess whether it’ll join our list of the
, where we’ve covered different accessories from all the major accessory makers. KIWI has a range of products that we have previously enjoyed. Last year, the
was named our favourite battery head strap for Quest 3.
We will be reassessing our recommendations shortly. Until then you can find the KIWI K4 Duo on best Quest 3 and 3S accessories for $159.99.