LED Material: ABS+PC Colour: black Resolution: 48*48 with full color resolution LED display size: Left eye size: 7*10.5*9.5*6.5cm / Right eye size: 6.5*10.8*9.5*7cm Connection method: Bluetooth Power supply mode: power bank (excluding power bank) Control method: Download our APP (WiFi + Bluetooth connected backpack) Supported Content: Text/Image/Animation(GIF)/Graffiti Editing/Ride Safety/Game/Music Rhythm Product features 1. Cool Iron Man design, very fashionable and attractive. 2. Iron Man eye screen, through which you can design your favorite eyes, expressions, colors, etc. Application software combines rich screen design functions and materials. 3. Support local uploading of text, images, animation and other materials to the eye screen. 4. The backpack is powered by connecting to a USB socket.