70db 1800MHz Celular Signal Booster Repeater with ALC AGC Automatic Gain Control High Gain + Omni Antenna 3g Antenna Color: Black Compatible Phone Manufacturer: All Phone Work on 1800MHz Compatible Carrier: All Carriers Work on 1800MHz Frequency: 1710 ~ 1785 MHz 1805 ~ 1880 MHz Gain: 70dBi Connector: N-female Power Requirements: AC100-240V 50/60Hz 1A; DC 6V/2.5A Dimension: 4.80 x 4.29 x 1.06 in