Compatible with Meta Quest 3S/Quest 3: Featuring a gravity-balanced and distributed design, this head strap replacement compatible with Meta Quest 3s and 3 is ergonomically designed so that its gravity is evenly distributed at different locations on your head, reducing pressure on your face and head, allowing you to freely to adjust to the most comfortable state so that the device fits your head. 6000mAh Battery Pack for Quest 3/3S Head Strap: The Meta Quest 3 head strap comes with 6000mAh rechargeable battery, which can extend 3-4H playtime. When the vr headset is about to run out of power, you can insert a fully charged battery to avoid interrupting the game. In addition，battery for the Quest 3S/Quest 3 can great balance the front and rear weights, reducing facial pressure.Get constant power and endless fun from this battery strap. COMPATIBILITY: Specifically designed to fit Meta Quest 3S, Quest 3, Quest 2, and Vision Pro VR headsets with dedicated compartments