Compatible with: Vehicle Telematics; 4G LTE GPS Tracker Locator; Real-Time Vehicle Tracking Mobile DVR Video Recorder; Bus Truck RV Van Security Alarm System; Mobile Radio for Vehicle Collector Radio; Vehicle Car Connector 90-Degree S-Ma Male Plug Waterproof Active GPS Navigation Antenna Cable For Car Stereo Radio Head Unit Waterproof Magnetic GPS Antenna Greluma 4m Vehicle Waterproof Active GPS Navigation Antenna Discover the best GPS Antennas in Best Sellers. Find the top 100 most popular items in Amazon Electronics Best Sellers Cable Length: 4m; Connector: SMA Male Plug; This item: Greluma 4m Vehicle Waterproof Active GPS Navigation Antenna with SMA Male Connector for Car Stereo Head Unit GPS Navigation System Module Truck Marine Boat GPS Tracker Locator Real Time Tracking Greluma 4m Vehicle Waterproof Active GPS Navigation Antenna with SMA Male Connector for Car Stereo Headunit GPS Navigation System Module Truck Marine Boat GPS Tracking Locator Real Time Tracking, Frequency: GPS 1575., 42MHz; LNA Gain: 28dB; Power Supply DC Voltage: 3V to 5V; Power Supply DC Current: 10mA Max; Function: Magnetic Mount, Adhesive Bracket;