Featuring the Wrangler EL DORADO Smart Luggage set with the 3-in-1 Cup holder, phone holder, and USB port for charging devices. Battery pack is not included. Size options include 3 Piece Set (28" Large check-in, 24" Large check-in, 20" Carry on) or standalone units. All sizes of the luggage have the 3-in-1 feature and come nested. Built for the ultimate convenient experience for the modern day traveler.