We professional manufacturer followings products since 1995: *GSM FullBand/Band Selective Signal Booster, *CDMA FullBand/Band Selective Signal Booster, *DCS FullBand/Band Selective Signal Booster, *Dual Band (GSM+DCS) Signal Booster *PCD FullBand/Band Selective Signal Booster, *WCDMA FullBand/Band Selective Signal Booster Today, We would like to introduce GSM&DCS Dual Band Signal booster: *Specification: 1) Frequencies: Uplink 890-915MHz, 1710-1785MHz Downlink 935-960MHz, 1805-1880MHz 2)Output power: :e20dBm 3) I/O impedance: 50 V /N Connector 4) I/O return loss: d-10dB 5) Noise figure: d-8dB 6) Intermodulation attenuation (Po=13dBm):e40dBc 7) Transmission Delay: d0.5us 8) Ambient temperature: -10 degrees - 50 degrees 9)Power supply: AC110 - 220V±10% 45 -55Hz 10) Dimension: 158* 136* 37mm Welcome to contace us for more details! Daisy Zhan mobile77signal(at)gmail.com 86-139-23785451