400W 8-Band Directional Drone Jammer Handheld 20-2000m 2.4G 5.8G GPS L1 L2 868MHz for Law Enforcement This 400W 8-band handheld drone jammer is a high-power portable UAV countermeasure system designed for military units, law enforcement, prison security, and bomb disposal teams. It delivers 50W per band across 8 critical frequency bands, effectively disrupting GPS navigation, remote control links, and video transmission of commercial drones such as DJI Phantom 4, Phantom 3