Features:Retro Classic Game Console TV 8-Bit Built-in 620 Childhood Games w/2 ControllersIt has 620 built-in games in total, which cannot be deleted.This console doesn't take cartridges.It uses 5v charger for power and the available voltage is 110v-220v .So all originally household power source are supported.Console is small in size and very easy to carry around and set up whenever you are in the mood to relive your childhood memories or show your kid the kind of games you grew up with Plug:US/UK PlugStyle:2/4 ButtonAttention For Using:Never allow children to play it alone.Please turn off the machine and operate it after cooling it when the system is halted.This console doesn't support some TV with 4K resolution ratio.Package Includes:1x TV Game Console2x Controllers1x Power Adapter1x Audio / Video Cable for TVNoteThe built-in 620 machine has duplicate games