1. Equipped with ESP32-S3R8 high-performance Xtensa 32-bit LX7 dual-core processor, with a main frequency of up to 240MHz 2. Supports 2.4GHz Wi-Fi (802.11 b/g) and Bluetooth 5 (LE), onboard antenna 3. Built-in 512KB and 384KB ROM, 8MB PSRAM, and 16MB external Flash 4. Onboard 1.9-inch LCD screen, 170x320 resolution, 262K color 5. Onboard QMI8658 six-axis inertial measurement unit (3-axis accelerometer, 3-axis gyroscope) for motion and posture detection 6. Onboard USB Type-C interface for power supply and programming/debugging 7. Onboard 3.7V lithium battery charging and discharging interface 8. Onboard Micro-SD card slot for external storage 9. Reserved compatible pin headers for peripheral expansion 10. Compatible with LVGL and other GUI frameworks 11. Color: As shown 12. Material: PCB + LCD 13. Package Contents: 1 x ESP32-S3 development board with 1.9-inch display 14. Note: Light reflection and display differences may cause slight color variation between the image and the actual product. Measurement tolerance: ±1–3 cm.