WiFi + GPRS combo? Yes ESP-12S A9 GPRS IOT Node, a 2-in-1 cellular phone module with WiFi module allows you to location tracking, , SMS and data to your projects. This IoT node has both WiFi and GPRS support. means it's perfect for any wireless or internet-connected project.This is ESP-12S A9 GPRS IOT node which is based on ESP-12S and cellular phone module A9. Both modules are all from Ai-. With -in USB and battery charging functions, it is a true IOT development board. This is very useful in your IoT projects.The heart of the IoT node is the ESP8266 WiFi microcontroller with a clock frequency of 80 MHz and a voltage of 3.3V. The microcontroller contains the Tensilica chip core along with the complete WiFi stack. You can use the for IDE to program the microcontroller to implement an easy-to-run IoT core.We hooked up a CH340C USB serial chip can upload code at an astonishing 921600 rate to development. It also has an auto-reset function, so there are no pin and reset button presses.A9 is widely used in home automation, industrial wireless control, wireless location-aware devices and other Internet of Things. A 2G Nano SIM is required to do anything on a cellular network. in the US is no selling 2G and will be shutting down 2G network, so for US customers we recommend using any or on 's network (TING, , etc.).size:8x5cm Material:pvccolour:BluePackage Contents:1 x ESP-12S A9 GPRS IOT Node1 x antennaOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.