Aubika Head Strap With Battery For Meta/Oculus Quest 2, Extend Playtime&Counter Balance&Fast Charging, Adjustable Elite Strap Replacement Accessories?Completely Compatible?- Adjustable Quest 2 Battery Head Strap for Oculus Quest 2, built-in 18.5Wh/5000mAh battery extends the playing time of the to 5-6 hours delivering a longer gaming experience. ?S..