The J009-4G with Antennas ROHS is a type of electronic component developed and manufactured by DreamLNK. It is a 4G LTE high gain antenna that supports a wide range of frequency bands, including 2.4GHz, 3.5GHz, 5GHz, and 5.9GHz. The antenna is designed to meet the requirements of the RoHS Directive, the European Union's standard for the Restriction of Hazardous Substances, and features a robust physical design that ensures optimal performance even in harsh conditions. The antenna also offers a high gain output, making it ideal for extending the range of a wireless network.