Play in comfort and get up to 2 hours additional playtime* with this adjustable ergonomic head strap which features a built-in lithium-ion battery pack. Charge your Meta Quest 3/3S and head strap battery simultaneously with a single charging cable. This premium Meta accessory easily adjusts to fit most head sizes with the easy-to-use dial while distributing headset weight for a more comfortable fit. The flexible rear silicone support reduces fatigue and adds stability, helping you get the most out of every moment in mixed reality and VR. *Battery life may vary based on headset usage, configurations and settings.