This magnetic battery head strap accessory is specifically designed for the Meta quest 3 and quest 3s, made from high-quality, durable plastic to provide VR gamers with a comfortable wearing experience and excellent stability. The head strap comes with 2 x 8000mAh battery pack that supports 20W fast charging, offering extended gaming sessions. The magnetic base allows for convenient storage of the battery pack. The strap features a stepless adjustment knob that is sturdy and slip-resistant. The adjustable arms can be freely bent for easy storage. Suitable for children, teenagers, adults, and seniors, it is the best alternative to the official accessory.

• 20W Super-Fast Charging: Sonicgrace focuses on innovation in VR charging technology. The S3 Pro supports 20W fast charging for the Meta Quest 3 and Quest 3S, addressing concerns about battery life and long charging times. (According to our test data, the S3 Pro charges the Quest 3 from 0% to 100% in 2.5 hours, compared to 4 hours with other 12W charging head straps, offering a 37.5% faster charging speed).
• More Better Compatibility: The S3 Duo battery head strap perfectly fits the Quest 3 and the new Quest 3S. We have improved the charging system for better compatibility with the Quest 3/3S, eliminating the noise issue when the battery pack charges the headset. Providing users with a fast, secure, and quiet experience.
• Magnetic Charging Dock: The magnetic charging system offers VR gamers the most convenient and efficient solution. Designed specifically for Quest 3 and Quest 3S, this magnetic swappable charging dock supports 30W fast charging (15W per battery) and stores the battery packs. Say goodbye to messy cables and low battery anxiety, keep your Quest 3/3S fully charged and ready for uninterrupted gaming sessions.
• Durable and Slip-Resistant Knob: S3 Duo features a stepless adjustment knob for precise fitting. Made from high-toughness, durable material, the knob ensures long-term use without slipping or malfunctioning.
• Exceptional Comfort and Balance: The vr headset is made of high-density memory foam that effectively cushions the pressure from the device on your head. The back pad is made of high-toughness soft silicone, fitting various head shapes. The head strap automatically balances the weight of the device front and back, providing optimal comfort and stability during your gaming sessions.