All-round weight-reducing design: The ergonomic design effectively disperses the weight of the device, reduces the pressure on the head and neck, and improves the comfort of long-term wearing. Compatible with for 3/quest3S, perfectly balances the weight of the front and back of the device, and avoids the discomfort of heavy front and light back. Built-in large-capacity battery: Equipped with a high-capacity battery module, it extends the use time of for Quest 3/quest3S and allows you to play for a longer time. Supports charging while playing without interrupting the gaming experience. Fast charging function: Supports fast charging technology, which can fully charge the head-mounted battery in a short time, saving waiting time. for Quest 3/quest3S can be directly powered through the USB-C interface, which is convenient and fast. Comfortable and breathable material: Made of high-quality PU leather fabric, it is soft and skin-friendly, and not be stuffy even if worn for a long time. Adjustable headband design is suitable for different head shapes to a stable fit. Multi-functional integrated design: The built-in battery and weight-reducing module of the head are integrated into a simple and beautiful design, without the need for additional accessories. Strong compatibility: Designed specifically for 3/quest3S, it is perfectly adapted and easy to install without tools. Suitable for various scenarios such as gaming, watching , and office work. Battery capacity: 6000 mAh (can be used for about 2-4 hours when powered, and the battery can be fully in about 2 hours) Charging port: C-C Due to different batches, there may be differences in product appearance and printed text, which not affect use. Colour:White Material:ABS Package Contents: 1 * Weight-reducing Head Strap 1 * Rechargeable battery module 1 * Charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.