There is no battery pack in the package. If you need to use the charging port, please purchase the battery pack by yourself.Dimensions - 17.2"(H) X 11.8"(L) X8.3"(W), weight 0.75kg.Material: Made of high quality polyester, durable and waterproof.Features: Unique and colorful design, cute plush ball ornaments make this backpack more attractive. Large capacity for 16-inch laptops.How to charge the phone? The backpack comes with a cord to connect external devices to the internal charging bank.Occasion: Suitable for girls going to school, shopping, dating, traveling, camping, driving, etc. Can be used as school bag, daily bag, casual backpack.Recommended age: 5-20 years old