Review on HiBoost Cell Phone Signal Booster for Home - Improve Coverage in 8,000 Sq. Ft with 2 Indoor Antennas, Fine Tune Power, Works with Verizon, AT&T, T-Mobile, Sprint & More - FCC Approved by Brian Krump

boosted -120 -130 external signal to -100 -110 internal signal, not much but better. Gone are the days of no signal. Bluetooth and WiFi not connecting, network error, timeout, etc. (Known company issue for over a year, still unresolved). Technical support is honest: many simply do not connect, they sent a replacement amplifier, the same problems. No 600MHz (Band 71) support for T-Mobile. 5 miles, unable to determine correct target direction for the yagi. Regardless of the direction, always connect to another tower in the other direction.