For 3 VR Head Strap Replaceable Elite Strap with Battery Adjustable Head Strap for Accessories Helme No pressure on the face: -shaped 360°+180° , no pressure on the face when wearing, you can adjust the hood according to your needs when wearing Not afraid of fatigue: long-term wear is not afraid of tiredness, 180° decompression design, 34% weight reduction, can reduce 98% fatigue Adjustable and Flexible: The back knob is flush with the vr headset with no bumps, making it comfortable to wear and use while lying down. Easily adjusts for elasticity and fits head circumference of 16.9-24.8 inches Easy to Install &Store: The head back padding is also detachable, can easily and put in, easy to clean, it also can perfectly fit in the Official Carrying Case and most 3rd-party carrying cases on the market Extend playback time: (Battery version) for MetaQuest3 headband has a built-in 5000mah lithium battery, which is light in weight and can extend the use time of VR headsets. After fully , it can last for 5-6 hours, and the battery indicator light allows you to accurately monitor the remaining power to an immersive VR experience Hign-concerned Chemical:None Model Number:VR Head Strap (The product printed words depending on the batch, but this does not affect use) Color:As Shown Material:ABS Package Contents: 1 * With Battery Head Strap 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.