At least one embodiment of the invention describes a portable wireless point-of-sale vending machine that is easily moved and carried by a user. The vending machine includes an outer surface and at least one inner portion enclosed by the outer surface. The one or more inner portions include one or more receptacles, where each of the receptacles contains one or more reusable and interchangeable mechanical items. The vending machine may also include a wireless transceiver and embedded or removable computer that communicate with at least one third party in a bidirectional manner. The mechanical items are dispensed out of the outer surface as needed and the entire portable wireless point-of-sale vending machine may also be structurally used as an exercise device, integrated service device, carrying device, baby carriage or a physical therapy device.