1. Ultra-compact and nostalgic.2. Use 1:1 high-definition 720*720 LCD 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 -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:RGB30System:Support a of open source linuxCompatible games:Compatible with MAME/N64/PS/////SFC// and other simulators.Screen size:4.0 inch OCA full fitScreen resolution:720*720CPU:ARM -core 1.8GHz high performance open source chipRAM:LPDDR4 1GBExternal storage:TF1-OS(Support 16GB-256GB)-Game(Support 16GB-256GB)WIFI:Built-in WIFI 5Ghz+BluetoothLoudspeaker:Built-in 1W*2 cavity loudspeakerBattery:Built-in 4100mA li-polymer.Input power:5V-2AMaximum power consumption:5WBattery life:8 hoursCharging time:2 hoursInterface:TYPE-C fast charging interface, TV HD interface, OTG-USB interface, 3.5MM earphone interface.Size:145 x 86.5 x 18mm Console weight:207gDue to different batches, there may be differences in the appearance, color, and printing of the product, which will not affect its use.This version is a 16G system card+128G game card, thank you!Colour:A:blackMaterial:ABSPackage Contents:1 x Game Console1 x Charging cableOnly 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.