WiFIRE Technology - Wifi controller connects grill to smartphone with Traeger App. App controls temperature adds smoke and downloads recipes with guidance. D2 Direct Drive - variable speed fan and auger create smoke production. Single meat probe. 2-Tier grate system. 780 Square inch cooking space. Main tier grate: 30W x 19D. 2nd tier grate: 30W x 7D. Dimensions: 49W x 27D x 55H. Includes: Folding front shelf. Full length grill cover. 3pc BBQ tool set. Hickory BBQ Hardwood pellets 20lb bag.