The AN1G02.0038 with 2.5dBi 1dBi Vertical Omnidirectional 990MHz-433MHz Antennas ROHS is an electronic component manufactured by RFsister. It is designed to be used at the GHz frequency range in applications including mobile communications, wireless networks, and other related wireless systems. The antenna provides a stable and reliable performance with low radiation thresholds, while its vertical profile offers enhanced signal reception capability and a wider radiation coverage. Its ROHS compliance ensures that it is safe to use and won't be harmful to the environment.