Features: and high qualityNetworking Protocol: Support network /v6/SSL.TCP/UDP/HTTP/FTP/MQTT.Bluetooth-compatible Protocol: Meet Bluetooth-compatible .2BR / EDR and BLE standards.RF: NZIF Receiver Cla-1, Cla-2 and Cla-3 nsmitter AFH, sensitivity is -97dBm.Modular Interface: UART, SDIO, I2C LED PWM, TV, PWM, , IRGPIO, Touch r, ADC, DACLNA, . Instructions: The communication distance is up to 300 meters and the nsmiion power is 22dBm. supports FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC.Specification:Material: MetalNetworking Protocol: Support network/v6/SSL.TCP/UDP/HTTP/FTP/MQTTRF: NZIF Receiver Cla-1, Cla-2 and Cla-3 nsmitter AFH, sensitivity is -97det: TTGO Micro32F: Q F 4MBExtend Fuction: VGA, PS/2Modular Interface: UART, SDIO, I2C LED PWM, TV, PWM, , IRGPIO, Touch r, ADC, DACLNA, Working Voltage: 2.7V-3.6VWorking Current: About 30mASleep Current:230uAWorking Temperature Range:-40℃-85℃Size: Approx. 67x32 mm/ 2.63x1.26 inchesPackage Includes:1x Control ModuleNote:1.Please allow 1-2cm errors due to manual measurement, e sure that you do not mind before you order.2.Due to the difference between different s, the ture may not reflect the actual color of the item.