We specially manufacturer followings products since 1995: *GSM Full Band/Band Selective Signal Booster, *CDMA Full Band/Band Selective Signal Booster, *DCS FullB and/Band Selective Signal Booster, *Dual Band (GSM+DCS) Signal Booster, *PCD Full Band/Band Selective Signal Booster, *WCDMA Full Band/Band Selective Signal Booster Today,We would like to introduce GSM Full Band/Band Selective Signal booster: *Specification: 1)Frequency Range:Uplink 890~915MHz Downlink 935~960MHz 2)Output Power: >23dBm 3)Noise Figure: