... you receive , you can use directly !!!!! Signal booster for dual band of GSM990 A mobile phone signal repeater provides the ultimate ... of cell-phones. FEATURES:High gain, easy installation and operation.Full-duplex, single-port design.Use ALC technology, adjust extent automaticallyLED ... also! ) Any questions, pls fee free to contact us. full set dual band booster,W/ cable&antennas,1000M2 to work,GSM+DCS ...