High Power Waterproof 500W 5 Bands Drone WiFi Signal Jammer Professional 500W high-power signal jammer with coverage up to 2000 meters, specifically designed for drone jamming applications and GPS shielding in large prison facilities and security operations. Key Features Built-in over-temperature and VSWR protection functions LED indicators for working status & alarm notifications Fan-cooled rack cabinet equipped with casters for mobility Wide voltage input: 100-240 VAC power