Welcome to the store! 1. 2.9-inch e-paper module, 296 x 128 pixels. 4M flash. Maximum clock speed is 240Mhz. 2. MCU ESP32 can connect to other systems and provides Wi-Fi and Bluetooth via its SPI/SDIO or I2C/UART interface. 3. It is very easy to install and does not require particularly complicated operations. 4. This product is made of high-quality PCB material and is robust and durable. 5. With TF card slot, 3D antenna, GROVE (I2C), lithium battery interface, 500mA maximum charging current. All IO pins operate at 3.3V. Item Type: Module Speaker: 8Ω 1W Battery Connector: PH-1.25mm MCU: ESP32-D0WDQ06 Clock Speed (Maximum): 240Mhz Flash: 4M 1 x TTGO ESP32 2.9-inch ESPaper Plus Module 1 x Power Cable 1 x For GROVE Cable Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!