The Wilson 460105 AG Pro 70 Dual-Band 70 dB Yagi Kit for Voice, 2G & 3G provides the strongest signal boost – up to 10,000 square feet from the device. This signal booster typically provides five signal-strength bars.
Signal boosters are available for both indoor/outdoor use and for use in cars, RVs and boats. The signal boosters for land and marine vehicles are less expensive but also provide weaker signal boosting. The signal booster that provides the best signal for most vehicles, according to UberSignal, is the Wilson 460102 Mobile 3G Signal Booster Kit, which can be purchased through various outlets and online retailers.