A9G is a complete four-band GSM/GPRS module, which supports GPRS and GPS/AGPS technology and is integrated in a compact SMD package, which greatly saves customers the time and cost of developing GNSS applications. A9G can be widely used in various Internet of Things occasions, suitable for home automation, industrial wireless control, wearable electronic products, wireless location sensing devices, wireless positioning system signals and other Internet of Things applications. It is an ideal solution for Internet of Things applications. A9G development board is a multifunctional development board based on Anxin A9G GPRS/GSM GPS/BDS module, which can be used to verify the basic communication function and peripheral function of A9G module.