Vktech Mini Cell Mobile Phone Signal Booster 3G CDMA 850MHz RF Repeater Amplifier A mobile phone signal repeater provides the ultimate solution in any area where cellular communications can not work well due to leak of signals A mobile phone repeater is ideal for house, home, office use Frequency Range: Uplink 890-915MHz; Downlink 930-960MHz Impedance : 50 , Coverage : 100SQM Dimension : 	113*84*25mm