Built in games : 5000 retro games built in TF card Function: Game progress saving function, Download game. Game Stick Function : Support save game progress / Support add more games Wireless Controller: 2.4G Wireless Controller Support 1-2 Player, Get rid of the limitation of the cable and play freely. Installation : Plug game stick to HD port on TV , Connect USB cable to game console for power ,Select HD input on TV that will show image on TV . After that ,play free retro games . Classic Retro Video Game Console : The Classic Mini Retro Game Console is very popular TV game console in the 1980s. It has built-in classic childhood games, including dozens of the most classic video games, such as action, sports, puzzles are built in the retro game stick. The TV games plug and play are challenging, engaging and full of fun.What's more, it can save your game play and download games. Name: SF900 Wireless Game Console Controller : Double 2.4G wireless Controller Output : HDMI-Compatible Output Power supply : AAA battery for wireless controller ( AAA battery is no including ) Colour:Grey Material:plastic Package Contents: 2 x Wireless Game Console 1 x Game Stick 1 x USB Power Cable (random colors, don't accept the specified color) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.