High-performance, highly integrated microcontroller development board CNC aluminum alloy casing for a compact and aesthetically pleasing design 1.75-inch high-definition capacitive AMOLED screen Highly integrated power management chip and six-axis sensor (accelerometer + gyroscope) Built-in speaker, reserved battery compartment, and low-power audio codec chip with echo cancellation circuitry for rapid development and product prototyping This product is a high-performance, highly integrated microcontroller development board, featuring a CNC aluminum alloy casing for a compact, aesthetically pleasing design and premium feel. It includes a 1.75-inch high-definition capacitive AMOLED screen, a highly integrated power management chip, a six-axis sensor (accelerometer + gyroscope), RTC, a low-power audio codec chip and echo cancellation circuitry, a built-in speaker, and a reserved battery compartment, providing powerful support for rapid development and product prototyping. Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Color: As Shown Material: Aluminum Alloy Package Contents: 1* Round Screen Development Board Kit 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.