The 3.5-inch color screen provides you with delicate images and soft colors, which can effectively reduce eye fatigue. Built-in 2000mAh battery, it can work for 6 hours when fully charged It adopts high-performance quad-core AT2273S32 bit RISO chip, supports 60Hz high-frequency image quality, and can run smoothly for large-scale 2D/3D games Supports 11 major game emulators: SFC, GBC, GBA, GB, FC, NES, MD, MAME, SMC, CPS, SMD 640*480 high resolution brings delicate high-definition picture quality and wide viewing angle Supports TF card expansion capacity up to 64G (TF card not included), games/videos/songs/pictures can all be installed In addition to playing games, it can also be used to watch movies/listen to music/check pictures/display calendar/display clock Compact and lightweight, with size of 10x3x13cm, convenient to carry Specification: System: RTOS Simulator: SFC, GBC, GBA, GB, FC, NES, MD, MAME, SMC, CPS, SMD Screen: 3.5-inch IPS color screen (640*480) CPU: ATJ2273S 32Bit RISC Internal memory: supports DDR1/DDR2 TF card: supports TF card expansion, up to 64G (card not included) Speaker: Built-in 2W cavity speaker Battery: 2000mAh polymer lithium-ion battery Working time: 6 hours Functions: supports two-player games/large-screen synchronous output/movie playback/music playback/calendar/picture library/stopwatch