... When you receive, you can use directly. MINI 3G mobile phone signal amplifier, cell-phone repeater/booster ... coverage area depends on the region's conditions and external signal strength. A. Host: 1. 250-300 ... for 800-2500mhz ( CDMA,GSM,PCS,DCS,2.4G wifi suitable ) ;4. Max. power: 50W ;5. Impedance ... Suitable for 800-2500mhz ( CDMA,GSM,PCS,DCS,2.4G wifi suitable ) ;4. Max. power : 50W ;5. Impendance ...