Item Type: Head Strap Battery Pack_x000D_ Material: ABS_x000D_ Battery Type: Lithium Battery_x000D_ Battery Capacity: 5000mAh ( Included)_x000D_ Input: 5V 2A_x000D_ Output: 5V 2A_x000D_ Applicable Models: for Quest 2 1CHARGING PROTECTION: Head strap battery pack supports over current protection, over voltage protection, over charge protection and short circuit protection. 25000MAH: VR extend power is designed with large capacity, easily get extra 2?4 hours of gaming time and provide better VR experience. 3APPLICABLE OBJECTS: VR head strap battery is specially designed for for Quest 2, please confirm the brand model etc. before purchase. 4PROFESSIONAL DESIGN: Head strap battery with professional design, avoiding the headphone hole, does not affect the use of headphones. 5LIGHT WEIGHT: VR head strap battery pack is designed to be thin and light weight and will not add any weight to your VR headset.1 x HeadStrapBatteryPack 1 x Charging Cable