Mobile 3G Signal Booster (Cellphone Signal Repeater, UMTS Mini Repeater). Mobile 3G Signal Booster (Cellphone Signal Repeater, UMTS Mini Repeater). Selling point of product: 1. 200-500 square ... 2. Gain: 8dbi;3. Suitable for 800-2500mhz ( CDMA,GSM,PCS,DCS,2.4G wifi suitable ) ;4. Max. power: 50W ; ... Gain: 3 dbi ;3. Suitable for 800-2500mhz ( CDMA,GSM,PCS,DCS,2.4G wifi suitable ) ;4. Max. power : 50W ; ...