Optimal Compatibility: Designed specifically for 3 and for 3S, this battery pack fits both the right and left controllers seamlessly. Extended : Equipped with a powerful 500MA battery, these controller grips significantly extend gaming sessions, providing uninterrupted VR experiences. User-Friendly Design: Ergonomically designed grips enhance comfort and reduce hand fatigue during long gaming sessions, ensuring a secure and stable fit. Rechargeable Convenience: These rechargeable grips the need for constant battery replacements, making it easy to charge and for VR adventures. Experience the ultimate in virtual reality gaming with these specially designed controller grips. The optimal compatibility with for 3 and for 3S ensures a , while the powerful 500MA battery allows for extended without interruptions. The ergonomic design enhances comfort, reducing hand fatigue during long sessions, and the rechargeable feature means you can enjoy your VR adventures without the hassle of frequent battery changes. Color: White Material: ABS Package Contents: 1*Rechargeable Battery Cover Kit 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.