Welaso 21-inch LCD Video Advertising Backpack,1920 * 1080 Resolution Ratio, Human Walking Backpack Digital Billboard (Mobile Version+Touch Screen+4G+32G)

Welaso 21-inch LCD Video Advertising Backpack,1920 * 1080 Resolution Ratio, Human Walking Backpack Digital Billboard (Mobile Version+Touch Screen+4G+32G)

• 【21.5 inch LCD screen】 the backpack is equipped with a customized LCD screen and Android system, which can playvideos in mp4, mpg, rmvb, avi, mov, flv and other formats, 1080 *1920
• 【Working duration】 lt can work for 2-3 hours when fully charged, it uses rechargeable lithium battery，If needed, users can purchase additional batteries to extend running time.
• 【Multiple Functions】 The product has multiple functions, such as playing videos, Show ads slideshow, Ad loop play etc. Supports mobile phone Screen Mirroring, wireless screen projection, wired screen casting, real-time sharing, Internet surfing, ​conference whiteboard and so on, More features are waiting for you to discover.
• 【Easy to use】This backpack is very easy to use and set up. this version is an upgraded version, the system runs more smoothly. Using the shake function of the mobile APP, we can quickly release pictures or videos on the mobile phone to the screen of LCD backpack. We can change the content on the LCD anytime and anywhere via APP
• 【Fashion backpak】Adjustable backpack shoulder strap, adiustable screen height at any time, comfortable handle, antiscratch design, password lock
• 【Customer service】Don’t worry about after-sales service; If you need any further assistance during use, please feel free to contact us. we are always be there, We have a professional technical team and after-sales team to serve you