Use 1: 1 high-definition 720x720 LCD as the main vertical screen game series, such as airplane game consoles. Double TF card system and game storage design, upgrade system without copying games. Ultra-compact and nostalgic. Use high-performance quad-core CPU, FPS runs perfectly at 60HZ. Support open source system, upgrade at will, and be compatible with mainstream 64-bit 3D simulators. Model: RGB30 System: Support a of open source linux Compatible games: Compatible with for MAME or N64 or PS or or or or or SFC or or and other simulators. Screen size: 4.0 inch OCA full fit Screen resolution: 720x720 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 5GhzandBluetooth Loudspeaker: Built-in 1Wx2 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. Due 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 cardand128G game card, thank you! size: 145 x 86.5 x 18mm Material: ABS colour: Blue Package Contents: 1 x Game Console 1 x Charging cable 1 x English instructions 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.