50db Marine/Rv Wireless Cell Repeater

powermax marine & rv cellular booster50db gain 3 watt dual band wireless repeater systemget more bars with digital antennas powermax 4kmr-30m marine and rv wireless cell booster. designed for boats with cabins and rvs this new 50db gain wireless cellular repeater system boosts the signal strength of your cell phone or air card to 3 watts and improves transmit and receive signals. the result is clean and clear voice quality with maximum data throughput on all carriers except nextel or iden. not for use in open console boats.dual band: fcc and ic approved for use with all north american cell phones operating on 850 or 1900 mhz (except nextel or iden). application: - boats with cabins and rvs (not for use in open concole boats) range/performance : - amplifies cellular signal up to 20+ mile*advantage: - wirelessly enchance multiple cell phones in one room 8 to 15 from inside antennarequiremen t: - 12 separation plus a structure between inside and outside antennas* increased range varies based upon height of outside a