6 Bands jamming WiFi Cell Phone Demo

This product has a very convenient single frequency switch. You can choose to open or close a frequency band as needed. With good heat dissipation system, it can work for a long time. Can block the main mobile phone band and WIFI and GPS signals. For more mobile phone signal jammer information, please visit: https://www.perfectjammer.com/all-cell-phone-jammers-blockers.html