10000mAh Li-Polymer Battery PackBuilt-in 10000mAh rechargeable battery. it can extend the game time up to 6-8 hours. With a Micro USB and a Type-C Charger Ports which will make you more convenient to play and charge, whatever Nintendo Switch placed on the desk or handheld. 90 Adjustable Kickstand & Game Card Slot2 stainless steel holders on the back for smooth rotation and 90-degree adjustment, and provide you with comfortable gaming experience. Power bank with 2 game card slots reserved, convenient to carry more game cards.