Features: Extend 2-4H Playtime ----With an upgraded 5000mAh huge-capaity, this battery pack compatible with oculus Quest 3s/Quest 3 and Quest 2 can extend your playtime 2-4H when fully charged, depending on the game you're playing and your device settings Exclusive and Perfect Design ----To make customers more convenient, Saqico latest head strap battery pack is specially designed for oculus/meta quest 2/3/3s, headphones can be used without adapters, fit perfectly compatible with the quest 2/3/3s Slim and Protable ----Slim design and lightweight, this charger is compatible with meta quest 2/3/3s only 2.96oz, will not add any significant weight to your VR headset; at the same time, it can also be carried in your pocket or bag for your charge other Type-C device Fast and Safe Charging ----This battery pack compatible with oculus quest 2/3/3s accessories has 5V/2A for quest 2, 5V/3A for quest 3/3s input and output (same as the official charger), supports charging and discharging, and passed safety certified test, providing overcharge, short circuit, overcurrent and overvoltage protection Perfect Compatibility ----This battery pack for oculus quest 2/3/3s is specially designed for Meta Quest 2/Quest 3/Quest 3s/ Quest/Elite Strap; also compatible with other devices with C-type connectors