Includes everything kids need to build and customize an interactive electronic Super hero gauntlet: electronic building blocks, LED Matrix, plastic pieces, stickers and battery. Built for even the toughest kids - each gauntlet comes with new and improved locks and gauntlet cover to keep Circuits secure and every littleBits kit is protected by a 30 day Warranty and customer support. Unlock hours and hours of steam (science, technology, engineering, art, math) learning with over 18 activities for Super hero kids to build, play and code. Creative kids bring their imagination to life by personalizing their interactive Super hero gear with included sticker sheets and household items. No grown Ups necessary: in-app step by step video instructions and troubleshooting guide kids through fun missions like stealth mode, speed Tracker, Super hero voice, and animator creator. An easy introduction to coding through block based coding, with activities to advance through programming fundamentals like loops and logic. Requires Smart device: either iPhone (iOS 10.0 or later) or Android (5.0 or later) is required to build and control your Avengers gear. Amazon devices not compatible at this time.