With cable+antenna,1000 square meters work,GSM booster,GSM repeater,900Mhz booster,GSM ... office and small public areas, etc.; C, Traffic and social influence of large areas, such as bars, cafes, dance ... as good as possible . The product will not work good if our outdoor signal is not good or ... bad. With cable+antenna,1000 square meters work,GSM booster,GSM repeater,900Mhz booster,GSM signal booster ...