Onboard PCF85063 RTC chip for real-time clock functionality. Supports 2.4 GHz Wi-Fi (802.11b/g/n) and Bluetooth 5 (LE) with onboard antenna. Built-in 512 KB SRAM and 384 KB ROM, stacked 8 MB PSRAM and external 16 MB Flash. Onboard 3.49-inch capacitive touch HD IPS display, 172 × 640 resolution, 16.7 million colors. Dual digital microphone arrays support audio processing including noise reduction and echo cancellation for voice recognition and voice wake-up applications. High-performance, highly integrated microcontroller development board featuring a 3.49-inch capacitive HD IPS display, integrated power management IC, six-axis sensor (3-axis accelerometer + 3-axis gyroscope), RTC, low-power audio codec, and echo cancellation circuit. Display panel: IPS Display resolution: 172 × 640 Display brightness: 350 cd/m² Display interface: QSPI Touch interface: I²C Display size: 3.49 inches Display color: 16.7 million Contrast ratio: 1200:1 Driver chip: AXS15231B Touch type: Capacitive Type: A/B Color: As shown Material: PCB + LCD Package contents: 1 × ESP32-S3 3.49-inch Development Board Note: Lighting conditions and display settings may cause slight color variation between the image and the actual product. Measurement tolerance: ±1–3 cm.