KH-BLG-K581-WZ with Antennas ROHS is an integrated antenna manufactured by Kinghelm. It is an all-in-one solution for cellular, WiFi, Bluetooth, GPS, and other applications. The antenna is designed for high-end performance, and features a high gain, low profile design, as well as an ultra low PIM rating for maximum performance in urban settings. Additionally, the antenna has ROHS compliance, making it suitable for all types of applications.