4.0-inch IPS OCA Full Fit: Adopting a 1:1 HD 720*720 resolution. Featuring vertical screen games such as airplane game consoles Double Card Slot Design: Independent system and game storage design. Upgrading the system does not require copying games High Sound Quality & Portable: With 2 horn speakers, stereo sound quality; Compact in size, lightweight and portable, easy to carry Rechargeable Battery: Built-in 4100mAh large battery, with a Type-C port, support for fast charging, long and stable battery life Excellent Performance: ARM Quad Core 1.8GHz high-performance FPS runs smoothly at 60Hz. RAM: LPDDR4 1GB Specifications: Product size: 14.5 x 8.65 x 1.8cm Display size: 4.0 inch IPS OCA Full Fit Screen resolution: 720*720 CPU: ARM quad core 1.8GHz open source chip RAM: LPDDR4 1GB ROM: 16GB (Not Included) Expansion storage: up to 256GB TF Card (Not Included) WiFi: 5G+Bluetooth Voice: Built-in cavity horn 1W*2 Battery: 4100mAh Input power: 5V2A Max power: 5W Battery life: 8H Charging time: 2H Interface: Type-C TV HD OTG-USB Audio 3.5mm Note: This game console is a NO ROM/TF Card Version; Please prepare the memory card to play the game, Thanks for your understanding!