Computers; Computer Hardware; Panel computers; Cash registers, calculating machines and data processing equipment and computers; Electronic machines for reading credit cards; Thermal printers; Bar code readers; Bar code scanners; Radio frequency identification (RFID) credentials, namely, RFID cards and tags, and readers for radio frequency identification credentials; Near field communication (NFC) technology-enabled devices, namely, cell phones, Panel computers, and personal digital assistants; Mobile phone cases featuring rechargeable batteries; Carrying cases, holders, protective cases and stands featuring power supply connectors, adaptors, speakers and battery charging devices, specially adapted for use with handheld digital electronic devices, namely, cell phones, Panel computers, and personal digital assistants; Equipment for point-of-sale (POS) systems, namely, point-of-sale terminals, bar code readers, optical readers, display monitors, keyboards, printers, scanners, radio transmitters, radio receivers, computer hardware and computer operating software; Point-of-sale apparatus, namely, point-of-sale terminals; Multi-functional electronic payment terminals; Electronic payment terminal