Manufacturer Direct 5-Bands Signal Blocker Professional cell phone and WiFi signal blocker designed for prison and law enforcement facilities, blocking full-range WiFi including 2.4G, 4.9G, 5.0G and 5.8G frequencies. Product Overview This 50W all-WiFi signal jammer meets demanding requirements for detention center use with comprehensive frequency coverage and reliable performance. 5 dedicated antennas for blocking 2.4G/4.9G/5.0G/5.8G WiFi and Bluetooth signals Jamming