【3.5-Inch IPS Full-Lamination Display】Equipped with a high-resolution 640*480 IPS screen for vibrant colors and clear visuals, enhancing the retro gaming experience 【Open-Source ArkOS System】Runs on the open-source ArkOS system, offering flexibility and compatibility with a variety of games and customization options 【Supports External WiFi Module】Compatible with 2.4G and 5G dual-band WiFi for seamless online connectivity and multiplayer gaming 【Arcade-Style Design for Authentic Gameplay】Ergonomically designed to replicate the arcade experience with a well-placed joystick and button layout for smoother gameplay 【Long-Lasting 3500mAh Lithium Battery】Built-in high-capacity polymer lithium battery provides extended gaming sessions on a single charge 【Multi-Emulator Support for Thousands of Games】Supports dozens of emulators, including PSP, PS1, GBA, SNES, and more, allowing access to thousands of classic games 【Dual TF Card Slots】Dual TF card independent system and game storage design, no need to copy games when upgrading the system, maximum support for 256G system card expansion (not included) Specifications: System: Open-source ArkOS system Size: 3.5 inch IPS OCA full fit Resolving power: 640*480 Memory: 16+32G CPU(RK3326): ARM Quad-Core High-Performance Open Source Chip Built-in lithium battery: 3500mAh Battery life: about 8 hours Charging time: 2 hours Maximum power consumption: 5W Input power: 5V/2A Built-in cavity horn: 2W Type-C Fast Charging: Support OTG-USB: Support Headset: Standard 3.5mm Product weight: 0.18kg Product Size: 120 x 83 x 20.8mm