- 37dBm 90dB high power signal booster indoor coverage area upto 5000-8000㎡,outdoor upto 2-4km and easy to install. - Digital ALC technology,auto limit the output power to ensure stable signal coverage. - LCD display of system operating status such as frequency,gain,output power and isolation. - Anti-interference,real time auto ISO detection and Self Oscillation Elimination keeping base station away from interference. - CR90C signal repeater able to increase signal coverage,decrease mobile phone radiation, and increase mobile phone battery lifespan.