... you receive , you can use directly !!!!! Signal booster for dual band of GSM900 and DCS 1800Mhz together . GSM/DCS ... of cell-phones. A mobile phone repeater is ideal for house, home, and office use. The device ... operation and no interference. It is the ideal device for boost mobile phone signal. A mobile phone repeater ... suitable ;2. Gain: 3 dbi ;3. Suitable for 800-2500mhz ( CDMA,GSM,PCS,DCS,2.4G wifi ...