Best suited for Girl Kids (8 to 13 years), Women, Travelers, and Daily use. LED screen is removable – easily wash the bag or use it as a regular backpack. Connect the Power Bank to turn on the Screen. Power bank to be bought separately. Customer to use his/her own power bank. Any regular 10000mAh capacity Power bank will last for 7–8 hours. Once the screen is on, Connect via Bluetooth to the mobile app (App details are inside the instruction manual that comes along with the bag). Upload pictures or videos from your phone gallery via the app BUT Best experienced with built-in animations or custom text typed through the app. Upload multiple animations or text and play them in a loop. Mobile connection is needed only while setting animations. Once set, the bag displays animations automatically when powered—even if your phone is not nearby.