Have you ever consider that a 5 antennas jammer can block the signals of 2G 3G 4G WiFi signals at the same time and also allow you to decide which frequency bands to block or not? Right here this Handheld 5 Antennas Selectable 2G 3G 4G WiFi Signal Blocker that being introduced just is designed with such ability.
Having use the advanced technology and to meet people’s requirements this selectable 2G 3G 4G WiFi signal blocker is designed with the selectable buttons so that you can adjust or turn off any single band without influencing the other bands operation. Besides since this selectable 2G 3G 4G WiFi blocker has applied the external Omni-directional antennas, all the TX frequency covered down link only, so that it can block the signals within its jamming frequency bands from all directions with up to 20 meters jamming distance as with 3W output.
Moreover, the latest design and Good cooling system with cooling fan inside makes this selectable Bluetooth 3G 4G mobile phone jammer always in good working condition and the car charger enables this selectable WiFi 3G 4G phone blocker being used in the car directly. And with built-in 4000mA/h Battery, charge full time is about 4Hours while working time is 1-2Hours. This selectable WiFi 3G 4G phone blocker also own wide application areas as for places such as meeting rooms, conference rooms, trains, bus and more it can be applied.
-CDMA/GSM: 850 to 960MHz
-DCS/PCS:1805 to 1990MHz
-3G:2,110 to 2,170MHz
-WiFi:2400-2500MHz
-4G LTE:725-770MHz
-4G WIMAX:2345-2400MHz