Improve Comfort - Help Quest Pro increase the weight of the back of the head and reduce the discomfort of using the head forward Increase Uasge Time - Has 10000 mAh which can effectively extend the usage time of 2-3 H. But the battery usage time will be related to the game type,when you choose a high consumption game, the battery consumption will be faster and the usage time will be reduced accordingly Superior Safety - Built-in exclusive safety protection system includes overcharge protection, short circuit protection, temperature control, etc Built-in Charging Cable - No need to worry about losing the cable. The length is moderate, needn't worry about the cable being too short to restrict your movement when playing Meta Pro Easy Installation - Use the tools provided by us to remove the Qust pro rear brain cover and install the power bank dock part to Obtain additional power.Please use kkcobvr official or qualified charging cable when charging the battery pack. This is a battery dock specially designed for QUEST PRO, including a 10,000 mAh battery pack, which allows Meta quest pro to obtain a more robust battery life