VGdd79S490N0S1 with SMD, 11.5x11.5mm LoRa Modules ROHS is a RoHS compliant surface mount device (SMD) module designed and manufactured by Vollgo, a provider of wireless communication solutions. It is built with LoRa modulation technology and is used for long-distance communication over long-range radio frequencies. It has an 11.5x11.5 mm size and is compatible with a wide range of applications. Its features include Low Power Consumption, Rely Reply, and Low In-Band and Out-of-Band Emissions. It is designed for industrial and commercial applications that require reliable communication and low power consumption.