For Mate Oculus Quest 2 VR Head Strap Elite Band Power Bank Mount Battery Holder | eBay
FAQ – virtualmate
VR Head Strap Compatible with Oculus/Mate Quest 2, Replacement for Quest 2 Elite Strap, Super Soft and Skin-Friendly PU Surface, Adjustable,Enhanced Support and Comfort in VR Headset(No Battery) : Amazon.sg: Electronics