MCU: ESP32-S3 Dual-core LX7 microprocessor Wireless Connectivity: 2.4 GHz Wi-Fi, BLE 5 Flash:16MB, PSRAM: 8MB Battery Detection:IO04 Onboard functions: Reset + Boot, IR Transmit & Receive CC1101 Low-Power Sub-1 GHz RF Transceiver - Frequency bands: 300-348, 387-464, 779-928Mhz PN532 NFC/RFID I2C transceiver module Support USB/Li-Po Battery Dual Power Supply 1.9 inch ST7789V IPS TFT LCD: Resolution: 170(H) RGB x 320(V) Drive Chip: ST7789 Due to different product batches, the appearance , which does not affect use. Colour:As Shown Material:Plastic Package Contents: 1 * T-Embed CC1101 Module Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.