Extend your VR adventures with the Sonicgrace S3 Pro Battery Head Strap, designed specifically for Meta Quest 3 and Quest 3S. This premium accessory features an 8000mAh magnetic battery pack that provides an additional 3-4 hours of playtime and supports 20W super-fast charging. Its ergonomic, gravity-balanced design with high-density foam padding ensures superior comfort and pressure relief during long gaming sessions. The durable, non-slip gears and stepless adjustment knob allow for a precise fit for all head sizes, while the silent charging technology ensures no electrical noise interference.