Phonetone 70dB 900MHz Cell Phone Signal Booster Amplifier Repeater + Yagi antenna and omnidirectional indoor antenna (Electronics)
In the description it is clear that it amplifies a "Unique 900MHz band," which means only GSM, 3G is on the 2100 MHz band, and 4G on the bands 1800 and 2600 MHz. So the title of the product is totally wrong, this only amplifies the way.
