Specifications:Main control frequency: Duad-core Cortex-A7 up to 1.0GHzMemory performance: DDRIII 256MSupport external TF: expandable to 128GGame content: 64G(20000+),Games ,128G(30000+ Games)Support games arcade, mame, atari2600, atari5200, atari7800, atarilynx, cps1, cps2, cps3, fbneo, gamegear, gb, gba, gbc, genesis, megadrive, nes, nesh, ngpc. pcengine, psx, sfc, snes 23 kinds of emulatorsUse interface: HDMI-compatible output, 1080P, 720PVoltage input: 5V/1A/2AFeatures:Original 3K rockerspecial game rocker for arcade, high sensitivity andantiskid design.2.4G wireless controller gamepad .Support up to 10 kinds of classic simulators to play classic nostalgic games.The upgraded version of H D is more smooth and ready to play.Support wireless handle and wired handle, a drag two handlesupport four people online to play.Package Included:1 * Game stick.1 * HDMI-compatible cable.1 * USB charging cable.2 * Wireless gamepad.1 * Receiver.1 * TF card. (64G,128G optional)1 * Manual