KIWI design K4 Boost Comfort Battery Head Strap Accessories for Meta/Oculus Quest 3/3S, Dual Charge the VR Headset and Battery Strap in 2.5h

【Extended Playtime with Enhanced Battery】Enjoy uninterrupted gaming with up to three hours of additional battery life; play longer without worrying about running out of power; tailored to your usage scenarios for maximum performance 【Dual Fast Charging】 Two Times Faster Power up both K4 Boost and Quest 3S/3 simultaneously with DualBoost Charging system; fully charged in just 2.5 hours; 45W adapter(not included）delivers 25W output to Quest 3S/3; reach 65% charge(Both HMD&K4 Boost) in 60 minutes for 2.5 hours of playtime 【Comfortable and Balanced Design】Game longer with enhanced comfort; enlarged rear support and thickened padding reduce facial pressure; better weight balance reduces strain on the head and neck for extended play 【Safe and Reliable Materials】Built with high-quality battery cells and advanced PCB boards; multiple layers of protection including NTC and UL certifications; materials rigorously tested in TUV lab for safety and durability 【Easy Wear and Quick Adjustment】Easily put on and take off your headset with a 52-degree damping hinge; quick adjustment dial ensures a perfect fit every time; share the fun instantly with family and friends