LED Backpack with Programmable , DIY Laptop Backpack /School Bag Welaso New Fashion Smart LED Backpack If you are looking for a backpack, I will recommend this new fashion LED backpack to you. It is no longer a traditional backpack, but a more interesting and creative backpack. For example, it can be used as a portable billboard,advertising screen, holiday wishes, slogans,business promotions,commuting,cycling, casual bag, hiking backpack,showing your personality and creativity, or even surprise gifts for friends.this LED backpack is perfect for you,you will love it. Lots of interesting function in app, like graffiti. APP support language: English, French, Spanish, Chinese, Japanese, German, Portuguese, Russian ... Notice: You should have a power bank that has 2A output (USB Type -A). If not, need to buy it separately, because it is not included in this product Smart DIY Backpack, Suitable for Cycling Bag, Casual Bag, Bag, Laptop Bag,Daily Commuting Bag etc. Advantage This backpack has a built-in 64*64 Bluetooth high brighten LED screen,Programmable LED Sign which support text,picturem,animationsErgonomic carrying design: the back wrap design, comfortable and widened, and padded shoulder straps, effectively reduce shoulder pressure, easy travel;Use waterproof fabric to protect the LED screen and walk freely;Large-capacity,Multiple storage spaces. can hold 15.6-inch laptops; also can be carried on airplanes;Lots of interesting function in App, like graffiti. APP support multiple language: English, French, Spanish, Chinese, Japanese, German, Portuguese, Russian ... Specifications Advantage Backpack has built-in 64*64 bluetooth high brighten LED screenProgrammable LED SignSupport text,picturem,animationsUse waterproof fabric to protect the LED screen and walk freelyCan be carried on airplanes; Basic Info Dimensions:16.5 x 12.6 x 6.3 inchesColor: BlackMaterial: Polyester Nylon/TPUNet weight: 2.7 poundsCapacity: 21 liters LED Screen size: 9.84*9.84 inchesSupport points: 64*64 full-color dot matrixPower supply: Power Bank with 5V/2A output(USB Type -A )Communication method: Bluetooth Packing List 1 x LED Backpack (Not include power bank)1 x Waterproof rain cover1 x Manual Cheerleading Backpack Support your favorite teams and starsDisplay your cheerleading slogan on the backpack Holiday Gift backpack As a holiday gift for family or friendsCelebrate Christmas, Halloween, Thanksgiving, Valentine's Day,Happy New Year together Portable Billboards Backpack Discount promotionStores billboard DIY Backpack with Programmable Showing your personality and creativityDIY impressive backpack with programmable.Change the backpack's content by your mobile bluetooth APP, so easy Laptop Bag / Bag / Casual Bag Easy to store 15.6 inches laptop,tablet etc.Daily commuting for work，class, especially at night, do not let yourself be in a darkstateSuitable for daily commuting, traveling, cycling, outdoor adventure Outdoor Cycling Bag Effectively remind the driver of the rear vehicle to avoid being in the blind spotEspecially when outdoor at night, LED backpack display will be clearer and more attractive APP programmable Use smart phone APP to design your own artwork, which needs to be displayed on the LED backpack Packing List Packing List: 1 x LED Backpack (not include power bank)1 x Waterproof rain cover1 x Manual