The Powkiddy RGB20S Handheld Retro Game Console features a 3.5 inch HD screen with a resolution of 640 * 480. It has a built-in cavity horn 2W and supports various game simulators like MAME and N64. The console runs on an RK3326 quad-core processor and comes with 25,000 games pre-installed on a 128GB storage capacity. With a battery life of 8 hours and fast charging capability, it offers a convenient gaming experience for retro game enthusiasts.