1. Ultra-compact and nostalgic. 2. Use 1:1 high-definition 720*720LCD as the main vertical screen game series, such as airplane game consoles. 3. Double TF card system and game storage design, upgrade system without copying games. 4. Use high-performance quad-core CPU,FPS runs perfectly at 60HZ. 5. Support open source system, upgrade at will, and be compatible with mainstream 64-bit 3D simulators. Model:RGB30 System:Support a variety of open source linux Compatible games: Compatible with for MAME/N64/PS/////SFC// and other simulators. Screen size:4.0 inch OCA full fit Screen resolution:720*720 CPU:ARM quad-core 1.8GHz high performance open source chip RAM:LPDDR4 1GB External storage:TF1-OS(Support 16GB-256GB) -Game(Support 16GB-256GB) WIFI:Built-in WIFI 5G+Bluetooth Loudspeaker:Built-in 1W*2 cavity loudspeaker Battery:Built-in 4100mA li-polymer. Input power:5V-2A Maximum power consumption:5W Battery life:8 hours Charging time:2 hours Interface:TYPE-C fast charging interface, TV HD interface, OTG-USB interface, 3.5MM earphone interface. Colour:Yellow Material:ABS Package Contents: 1 x Retro Game Console 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.