Joystick player sonic the hedgehog portable retro arcade, officially licensed title. 8.9 cm vertical high-resolution full-color display. features artwork inspired by the original arcade cabinet. contains 2 games: sonic the hedgehog and sonic the hedgehog 2. built-in speaker with volume control. 3.5 mm headphone jack. adjustable screen brightness. powered by 4 aa batteries (not included) or a usb-c cable (not included). ideal for any game room, office or display case. includes user guide