Cellular Signal Repeater 2G 3G 4G 5G Dual Band Signal Booster For Cellphone GSM Voice Amplifier B1 2100Mhz,B2 1900Mhz,B3 1800Mhz,B4 1700Mhz,B5 850Mhz, B28 700Mhz,B20 800Mhz,B8 900Mhz,Any Two Bands Combination With WIFI connection Monitor on Cellphone App



The IoT Dual Band BF-GXX/20 series signal booster is developed and produced by BSD Tech in SZ China,Its working principle is the downlink amplifies the strongest cell phone signal from cell tower which is captured by the outdoor antenna,and the uplink works to receive the cellphone signal,after amplification and transmit to the cell tower.

The Dual Band BF-GXX/20 series booster Works For All the Europe,Asia,Africa,Australia Country Carriers GSM 2G Voice Call service,you just need to choose the right band which your carrier is using for your LTE

4G network,so the booster can meet the daily requirement of voice call service and LTE 4G data for the people.

The booster coverage up to 800m2 when it is full output power.

In addition to the high-definition digital LCD on the device, you can also connect the device to WIFI, and then monitor the device remotely through the cellphone IoT App.

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During the use of the product, you don't have to worry about the installation and quality of the product. When the device is connected to WIFI, and a fault occurs, the fault information will be actively reported to the user and the factory at the same time, and the signal expert will follow up and remind the user to check the booster and offers solutions.