1. High performance processor: RISC-V 32-bit single core processor, with a main frequency of 160MHz, low power consumption and high efficiency. 2. Wireless connection: Supports 2.4GHz Wi Fi and Bluetooth 5 (LE) to meet various communication needs. 3. Built in display: 0.71-inch LCD screen, 160 x 160 resolution IPS panel, suitable for GUI interface. 4. Rich storage: 400KB SRAM+384KB ROM, 4MB Flash, providing sufficient memory support. 5. Battery management: Built in battery charging management circuit, supporting external power supply of lithium batteries, convenient for mobile applications. Version: Bare screen, with shell version MCU:ESP32-C3FH4 Display size: 0.71 inch Working voltage: 3.3V Display resolution: 160 x 160 Backlight current: 20mA Display panel: IPS Display interface: 4-wire SPI Driver IC: GC9D01 Brightness: 350 cd/㎡ (typical value) Product size: 20.12 x 22.3 x 1.81 (H x V x D) (mm) Application scenario: Suitable for developing low-power AI simulation eye, watch and other HMI applications based on ESP32-C3 Colour:black Material:Plastic + Glass style:Without Case / with Case Package Contents: 1 * 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.