Our weBoost Drive 4G-M cell booster came with a 4" rooftop magnetic antenna. The booster worked well for us this past winter, even in the Everglades where we used to get little or no signal. I've just replaced it though, with a Maximum Signal MaxAmp Mobile RV booster that gives us boosted coverage from end to end in our 34' motorhome instead of only within a few feet of the weBoost's "Hershey Bar" inside antenna. I haven't had a chance to thoroughly test the MaxAmp yet, but it shows promise of being superior to the weBoost in overall range, as well as the inside coverage. I'm using the supplied 13" mag mount roof antenna with it and the supplied ceiling mount inside antenna. Our weBoost is listed on eBay.