AWS 1700MHz Cell Phone Amplifier 70db Signal Antenna Booster with ALC AGC Automatic Gain Control Fuction Phonetone Manufacturer Color: Black Compatible Phone Manufacturer: All Phone Work on 1700MHz Compatible Carrier: All Carriers Work on 1700MHz Frequency: 1710 ~ 1755 MHz 2110 ~ 2155 MHz Gain: 70dBi Connector: N-female Power Requirements: Power Supply: AC 100-240V; DC 12V/2.0A Dimension: 4.80 x 4.29 x 1.06 in