One of the ways in which Handspring tried to communicate the Treo sales message to consumers in the retail model was through packaging. The packaging for all Treo products showed pictures of the product and examples of the screens (in color for the full- color models). The packaging also explained each of the features of the Treo device, along with product information and a list of the equipment that came with the purchase. The packaging used by the wireless phone carriers is customized to their specifications. When Handspring went to the sell-through-the-carrier model, the carriers controlled the look and feel of the packaging. Handspring also produced brochures and other collateral material that it offers to retailers and used at trade shows.