Double 3D Joystick: The RGB20SX handheld game console is designed to elevate your gaming experience with its dual 3D joystick setup. Combined with cross direction keys, this design allows you to select the optimal controls for each game. The real spring four-plate L/R keys on the back, along with their exquisite curvature and grip craftsmanship, provide a comfortable and immersive gaming experience, allowing you to play in a better game state. High Resolution Screen: Enjoy stunning visuals with the RGB20SX's 720x720 high-resolution screen. The 4-inch IPS HD fully laminated color display offers clear picture quality and wide viewing angles. Its delicate and soft colors effectively reduce eye fatigue, while the high fluidity ensures smooth, lag-free gameplay, making it perfect for extended gaming sessions. Powerful Chip: The RGB20SX is equipped with a professional ARM quad-core 1.8 GHz open-source chip. This powerful 64-bit processor easily handles large 2D and some 3D games, providing a seamless gaming experience. With support for 11 major emulator games, including MD, MAME, SMC, CPS, and SMD, you can enjoy a wide variety of classic and modern games. Small Memory Card: Expand your entertainment options with the RGB20SX's small memory card expansion slots. These slots allow you to store games, videos, songs, pictures, and other files, making this console a versatile multimedia device that goes beyond gaming. Powerful Longevity: The built-in 5000mAh polymer battery ensures you can enjoy up to 4 hours of continuous gameplay on a single charge. The battery is removable, allowing you to easily monitor its status. With two-way protection for safer charging and discharging, the RGB20SX offers strong battery life and reliability, keeping you entertained for longer periods.