Review on Tri-band cellular signal amplifier and repeater Mr. Boosto 2G+3G+4G (900 -1800 - 2100 - 2600 Mhz) for home and garden, complete set by Adam Libera ᠌

The result depends on the operator - on the location of the nearest station and on the location of the antenna of this amplifier. So, for Amazon there was no noticeable effect, and Megafon gave a noticeable increase in Internet speed, but this increase is not stable: from 2 to 5 times. When installing, you need to catch the maximum signal by turning the antenna. The antenna was installed inside a wooden house under the ceiling of the 2nd floor. Removing the antenna to the outside did not give a noticeable result. The speed was measured by Speedtest.