High Power Waterproof Prison Signal Jammer This 240W Outdoor Waterproof Directional Long-Range Jamming System effectively suppresses 2G/3G/4G/5G, WiFi 2.4GHz & 5.8GHz signals over targeted long distances. Featuring waterproof housing and directional coverage, it achieves stable signal isolation to block unauthorized mobile communications in high-security environments. Primary Applications Prisons and correctional facilities Detention centers and secure visiting rooms