GSM Repeater Wide Band 37dBm*GSM,CDMA,DCS,IDEN,TETRA,CDMA450M,WCDMA,UMTS,GSM1800M,UMTS Repeater, booster*High gain, easy installation and operation.*Use ALC and AGC technology, adjust extent automatically.*LED Light Working & Signal Condition Indicators.*Dependability stand by GB6993-86...