ITEM NAME:1 Piece ESP32 WIFI Chip 0.96 inch OLED Bluetooth Kit Part Module/Board Description: The 868/915MHz antenna needs to be in connection with the IPEX interface . Lithium battery charge and discharge circuit, when the battery is full, the blue LED will stop working. With IO port touch screen touch signal input, you need to add the 100nF pull-down capacitor to this pin. This product is a SX1276 chip based on ESP32 WIFI increased OLED, namely LoRa remote modem, 868-915MHz frequency. High sensitivity is over-148dBm, + 20dBm output power, high reliability, long transmission distance. Specification: Material: PC Board Size: 53 x 27 x 8mm / 2.09 x 1.06 x 0.31inch Operating voltage: 3.3V to 7V Support for Sniffer software protocol analysis, Station, SoftAP, and Wi-Fi Direct modes Data rates: 150 Mbps @ 11n HT40., 72 Mbps @ 11n HT20, 54 Mbps @ 11g, 11 Mbps @ 11b Transmit power: 19.5 dBm @ 11b, 16.5 dBm @ 11g, 15.5 dBm @ 11n UDP sustained throughput of 135 Mbps Package Includes: 1 Piece ESP32 OLED Module 1 Piece Line 2 Piece pin 1 Piece 868/915Mhz Spring Antenna Note: Please allow slightly 0~1mm difference due to manual measurement. Color may be slightly different since different monitor..1 Piece ESP32 OLED Module. With IO port touch screen touch signal input, you need to add the 100nF pull-down capacitor to this pin. Transmit power: 19.5 dBm @ 11b, 16.5 dBm @ 11g, 15.5 dBm @ 11n. The 868/915MHz antenna needs to be in connection with the IPEX interface.