Discover the 5 Bands 2G 300M2 1800mhz Cell Phone Signal Repeater 20dBm, a powerful booster for 2G, 3G, and 4G signals. Ideal for homes, offices, and cars, this compact device enhances GSM850, GSM, DCS, 3G, and 4G LTE frequencies with 20dBm output power and 70dB gain.