CIU-004GP portable pocket sized hand-held 3G 4 G cell phone jammer that can disable all cell phones in all countries including the new 4G LTE band and Wi-Fi 11b. CIU-004GP is ideal for a meeting room, restaurant, classroom and the places requiring quiet. Besides, CIU-004GP prevents you from the threats of GSM/3G/4G bugs. CIU-004GP hand-held 3G 4 G cell phone jammer can be carried with you discreetly in a pocket or bag etc. for covert use and CIU-004GP has an effective jamming range up to 10 meters. CIU-004GP is housed in a rigid aluminum anodized case with gold plated antenna connections for excellent performance.