Small body and multi-function The ultra-small size (5*3*1 inch) allows for easy carrying and is perfect for outdoor use. It can also be connected to a large screen or controller for home use via a Type-C-OTG adapter, and features a built-in speaker and 3.5mm headphone jack.Ultra-long battery life The 3800mAh large-capacity rechargeable battery provides up to 10 hours of battery life, and comes equipped with a Type-C charging cable.3.5-inch HD screen The 3.5-inch IPS full-view screen ensures no errors at different angles, with a 640x480 resolution and clearer RGB color display.Free modification permissions In some games,you can switch simulator cores, adjust screen orientation and ratios, and apply screen filters. It also supports Wi-Fi connectivity and online battles (requires a Type-C interface Wi-Fi receiver, not included).R40S PRO new system 1.5GHz 64-bit RK3326 CPU, Mali-G31MP dual-core GPU, 8GB RAM; the new operating system provides a more responsive and smoother experience. Pre-installed with 30000+ games, it supports 45+ mainstream simulators, and the 256GB extended memory allows for adding more games.