Equipped with high-performance Xtensa 32-bit LX7 dual-core processor, with a main frequency of up to 240MHz. Supports 2.4GHz Wi-Fi (802.11 b/g) and Bluetooth 5 (LE), onboard antenna. Onboard 512KB , 384KB ROM, 8MB PSRAM and 16MB Flash. Onboard 1.47-inch LCD screen, 172x320 resolution, 262K color. Lead out most GPIO, integrated full-speed USB serial port. Onboard QM18658 six- inertial measurement unit (3- acceleration, 3- gyroscope), which can detect device deflection status, step counting and other functions. Onboard RGB colored lamp beads, with transparent acrylic interlayer, can achieve cool lighting effects. Onboard Micro-SD card slot, can be connected to an external SD card to store pictures or files. Onboard battery charging management module allows access to batteries to power the device. Supports flexible clock, multiple power modes and other accurate control to achieve multi-scenario low power consumption mode. (The product appearance and printed words depending on the batch, but this does not affect use) Specification:B:Solder pin header Color: As Shown Material: PCB+LCD Package Contents: 1 x ESP32-S3 Development Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.